CCRL 40/15

Opening statistics

This page shows how many games in our database were played from various known openings. The table also shows average draw percentage and white score we observed in our games.

ECO	Opening	Number of games	Draws	White score	Commented PGN
A00	Amar (Paris) opening	18	44.4%	33.3%	0.02 MB
A00	Amar gambit	1	0.0%	0.0%	0.00 MB
A00	Amsterdam attack	3	0.0%	100.0%	0.00 MB
A00	Anderssen's opening	517	41.0%	50.3%	0.33 MB
A00	Anti-Borg (Desprez) opening	7	0.0%	42.9%	0.01 MB
A00	Battambang opening	22	36.4%	50.0%	0.01 MB
A00	Benko's opening	10132	40.4%	52.1%	6.15 MB
A00	Benko's opening, reversed Alekhine	133	42.1%	45.9%	0.09 MB
A00	Clemenz (Mead's, Basman's or de Klerk's) opening	100	37.0%	50.5%	0.07 MB
A00	Dunst (Sleipner, Heinrichsen) opening	2570	36.3%	49.8%	1.55 MB
A00	Durkin's attack	14	21.4%	46.4%	0.01 MB
A00	Gedult's opening	14	14.3%	42.9%	0.01 MB
A00	Global opening	4	25.0%	62.5%	0.00 MB
A00	Grob's attack	199	42.2%	35.2%	0.13 MB
A00	Grob, Fritz gambit	57	43.9%	30.7%	0.04 MB
A00	Grob, Romford counter-gambit	4	25.0%	62.5%	0.00 MB
A00	Grob, spike attack	6	33.3%	33.3%	0.01 MB
A00	Lasker simul special	3	33.3%	50.0%	0.00 MB
A00	Mieses opening	350	32.0%	50.0%	0.24 MB
A00	Novosibirsk opening	30	36.7%	55.0%	0.02 MB
A00	Polish (Sokolsky) opening	2908	39.8%	48.1%	1.82 MB
A00	Polish, Outflank variation	195	42.6%	46.9%	0.14 MB
A00	Saragossa opening	467	29.6%	51.0%	0.32 MB
A00	Van't Kruijs opening	620	40.2%	50.9%	0.41 MB
A00	Ware (Meadow Hay) opening	30	33.3%	40.0%	0.02 MB
A01	Nimzovich-Larsen attack	1022	36.8%	51.7%	0.65 MB
A01	Nimzovich-Larsen attack, Dutch variation	45	24.4%	58.9%	0.04 MB
A01	Nimzovich-Larsen attack, English variation	537	35.6%	49.4%	0.36 MB
A01	Nimzovich-Larsen attack, Indian variation	687	37.4%	49.9%	0.46 MB
A01	Nimzovich-Larsen attack, Polish variation	6	16.7%	58.3%	0.01 MB
A01	Nimzovich-Larsen attack, classical variation	2277	35.1%	49.3%	1.45 MB
A01	Nimzovich-Larsen attack, modern variation	4424	38.7%	50.4%	2.70 MB
A01	Nimzovich-Larsen attack, symmetrical variation	910	40.7%	50.1%	0.57 MB
A02	Bird's opening	4400	36.6%	49.4%	2.68 MB
A02	Bird's opening, Swiss gambit	2	50.0%	75.0%	0.00 MB
A02	Bird, From gambit	287	32.8%	53.3%	0.18 MB
A02	Bird, From gambit, Lasker variation	36	47.2%	56.9%	0.03 MB
A02	Bird, From gambit, Lipke variation	1	0.0%	0.0%	0.00 MB
A02	Bird, Hobbs gambit	5	60.0%	70.0%	0.00 MB
A03	Bird's opening	3762	35.4%	47.9%	2.32 MB
A03	Bird's opening, Lasker variation	140	30.7%	46.1%	0.10 MB
A03	Bird's opening, Williams gambit	53	34.0%	56.6%	0.04 MB
A03	Mujannah opening	4	50.0%	25.0%	0.01 MB
A04	Reti opening	12597	38.6%	54.6%	7.71 MB
A04	Reti v Dutch	1893	32.9%	57.3%	1.20 MB
A04	Reti, Herrstroem gambit	2	0.0%	100.0%	0.00 MB
A04	Reti, Lisitsin gambit deferred	46	28.3%	68.5%	0.03 MB
A04	Reti, Pirc-Lisitsin gambit	164	30.5%	48.2%	0.11 MB
A04	Reti, Wade defence	2	0.0%	50.0%	0.00 MB
A05	Reti opening	5962	37.2%	53.1%	3.77 MB
A05	Reti, King's Indian attack	2049	41.4%	53.2%	1.30 MB
A05	Reti, King's Indian attack, Reti-Smyslov variation	158	33.5%	49.1%	0.11 MB
A05	Reti, King's Indian attack, Spassky's variation	719	43.4%	51.3%	0.48 MB
A06	Reti opening	1081	38.0%	52.7%	0.71 MB
A06	Reti, Nimzovich-Larsen attack	4497	39.4%	49.7%	2.82 MB
A06	Reti, old Indian attack	192	30.7%	48.2%	0.13 MB
A06	Santasiere's folly	226	37.2%	45.6%	0.16 MB
A06	Tennison (Lemberg, Zukertort) gambit	42	40.5%	51.2%	0.03 MB
A07	Reti, King's Indian attack	3057	41.7%	53.0%	1.90 MB
A07	Reti, King's Indian attack (Barcza system)	8145	41.2%	53.4%	5.10 MB
A07	Reti, King's Indian attack (with ...c5)	278	35.3%	50.0%	0.18 MB
A07	Reti, King's Indian attack, Keres variation	1060	37.0%	54.2%	0.70 MB
A07	Reti, King's Indian attack, Pachman system	211	41.7%	52.6%	0.14 MB
A07	Reti, King's Indian attack, Yugoslav variation	2196	40.6%	53.2%	1.41 MB
A08	Reti, King's Indian attack	822	41.6%	52.6%	0.54 MB
A08	Reti, King's Indian attack, French variation	353	38.8%	49.7%	0.24 MB
A09	Reti accepted	527	38.7%	52.6%	0.35 MB
A09	Reti accepted, Keres variation	68	27.9%	64.0%	0.05 MB
A09	Reti opening	1068	39.2%	54.3%	0.69 MB
A09	Reti, advance variation	1717	36.5%	48.6%	1.05 MB
A10	English opening	4794	37.3%	54.9%	2.93 MB
A10	English, Adorjan defence	962	39.2%	52.0%	0.57 MB
A10	English, Anglo-Dutch defense	1222	32.7%	51.4%	0.78 MB
A10	English, Jaenisch gambit	2	0.0%	100.0%	0.00 MB
A11	English, Caro-Kann defensive system	2189	40.2%	53.3%	1.39 MB
A12	English, Bled variation	31	38.7%	45.2%	0.03 MB
A12	English, Capablanca's variation	139	39.6%	46.4%	0.10 MB
A12	English, Caro-Kann defensive system	305	35.4%	51.8%	0.21 MB
A12	English, Caro-Kann defensive system, Bogolyubov variation	170	45.9%	54.7%	0.12 MB
A12	English, London defensive system	168	42.9%	53.0%	0.12 MB
A12	English, New York (London) defensive system	96	37.5%	43.8%	0.07 MB
A12	English, Torre defensive system	112	39.3%	50.9%	0.08 MB
A13	English opening	3239	37.6%	52.9%	2.08 MB
A13	English opening, Agincourt variation	2099	40.2%	55.1%	1.36 MB
A13	English, Kurajica defence	176	35.2%	60.2%	0.13 MB
A13	English, Neo-Catalan	1200	42.7%	52.3%	0.76 MB
A13	English, Neo-Catalan accepted	1684	47.9%	55.8%	1.08 MB
A13	English, Romanishin gambit	429	41.7%	56.8%	0.29 MB
A13	English, Wimpey system	240	48.3%	46.7%	0.16 MB
A14	English, Neo-Catalan declined	1264	45.2%	54.6%	0.81 MB
A14	English, Symmetrical, Keres defence	617	48.0%	57.4%	0.40 MB
A15	English opening	16475	44.0%	53.8%	9.81 MB
A15	English, 1...Nf6 (Anglo-Indian defense)	1917	38.8%	55.1%	1.20 MB
A16	English opening	1958	35.4%	54.2%	1.23 MB
A16	English, Anglo-Gruenfeld defense	408	43.4%	54.8%	0.27 MB
A16	English, Anglo-Gruenfeld defense, Korchnoi variation	98	37.8%	55.6%	0.07 MB
A16	English, Anglo-Gruenfeld, Czech defense	274	34.7%	59.7%	0.18 MB
A16	English, Anglo-Gruenfeld, Smyslov defense	197	37.6%	56.9%	0.13 MB
A17	English opening	329	39.2%	53.3%	0.22 MB
A17	English, Nimzo-English opening	2703	39.8%	53.8%	1.68 MB
A17	English, Queens Indian formation	366	37.7%	58.7%	0.24 MB
A17	English, Queens Indian, Romanishin variation	117	35.0%	55.1%	0.08 MB
A18	English, Mikenas-Carls variation	335	38.8%	58.2%	0.22 MB
A18	English, Mikenas-Carls, Flohr variation	543	41.4%	59.0%	0.33 MB
A18	English, Mikenas-Carls, Kevitz variation	32	34.4%	48.4%	0.02 MB
A19	English, Mikenas-Carls, Sicilian variation	730	39.0%	54.5%	0.47 MB
A20	English opening	10231	38.9%	53.4%	6.23 MB
A20	English, Nimzovich variation	166	31.9%	54.5%	0.11 MB
A20	English, Nimzovich, Flohr variation	222	38.7%	48.2%	0.16 MB
A21	English opening	2273	32.3%	55.5%	1.42 MB
A21	English, Keres variation	14	21.4%	46.4%	0.01 MB
A21	English, Kramnik-Shirov counterattack	3193	38.2%	51.9%	2.00 MB
A21	English, Smyslov defence	66	28.8%	61.4%	0.05 MB
A21	English, Troeger defence	175	27.4%	56.0%	0.11 MB
A22	English opening	1095	36.9%	50.8%	0.72 MB
A22	English, Bellon gambit	47	27.7%	58.5%	0.03 MB
A22	English, Bremen, Smyslov system	2092	39.0%	48.7%	1.31 MB
A22	English, Bremen, reverse dragon	859	40.5%	51.2%	0.56 MB
A22	English, Carls' Bremen system	605	37.7%	54.0%	0.39 MB
A23	English, Bremen system, Keres variation	974	40.6%	50.9%	0.64 MB
A24	English, Bremen system with ...g6	246	38.6%	49.4%	0.16 MB
A25	English, Sicilian reversed	1209	33.6%	53.7%	0.76 MB
A25	English, closed system	948	35.8%	53.6%	0.60 MB
A25	English, closed system (without ...d6)	146	30.8%	55.1%	0.11 MB
A25	English, closed, 5.Rb1	607	38.9%	52.4%	0.39 MB
A25	English, closed, 5.Rb1 Taimanov variation	10	20.0%	60.0%	0.01 MB
A25	English, closed, Hort variation	52	34.6%	55.8%	0.04 MB
A25	English, closed, Taimanov variation	34	20.6%	63.2%	0.02 MB
A26	English, Botvinnik system	400	37.0%	53.3%	0.26 MB
A26	English, closed system	452	38.3%	51.7%	0.30 MB
A27	English, three knights system	1406	31.5%	52.1%	0.89 MB
A28	English, Bradley Beach variation	82	25.6%	39.6%	0.06 MB
A28	English, Nenarokov variation	126	39.7%	50.8%	0.08 MB
A28	English, four knights system	484	41.5%	52.8%	0.33 MB
A28	English, four knights, 4.e3	1472	39.3%	52.3%	0.94 MB
A28	English, four knights, Capablanca variation	713	38.4%	53.9%	0.47 MB
A28	English, four knights, Marini variation	1206	39.3%	50.2%	0.77 MB
A28	English, four knights, Nimzovich variation	1007	37.1%	54.0%	0.67 MB
A28	English, four knights, Romanishin variation	644	50.8%	52.3%	0.43 MB
A28	English, four knights, Stean variation	111	43.2%	56.8%	0.08 MB
A29	English, four knights, kingside fianchetto	7996	41.8%	52.4%	4.87 MB
A30	English, symmetrical variation	4864	40.1%	54.2%	3.03 MB
A30	English, symmetrical, hedgehog system	3265	47.1%	56.1%	2.04 MB
A30	English, symmetrical, hedgehog, flexible formation	214	45.3%	54.0%	0.14 MB
A31	English, symmetrical, Benoni formation	1527	39.9%	55.7%	0.98 MB
A32	English, symmetrical variation	855	45.0%	54.1%	0.56 MB
A33	English, symmetrical variation	2192	48.0%	53.8%	1.38 MB
A33	English, symmetrical, Geller variation	849	40.5%	53.8%	0.51 MB
A34	English, symmetrical variation	1622	39.8%	53.9%	1.05 MB
A34	English, symmetrical, Rubinstein system	526	40.5%	51.8%	0.34 MB
A34	English, symmetrical, three knights system	1935	45.8%	54.6%	1.19 MB
A35	English, symmetrical variation	416	35.6%	50.2%	0.29 MB
A35	English, symmetrical, four knights system	2917	44.6%	53.5%	1.82 MB
A36	English, symmetrical variation	154	33.8%	51.3%	0.11 MB
A36	English, symmetrical, Botvinnik system	210	35.2%	49.5%	0.13 MB
A36	English, symmetrical, Botvinnik system reversed	124	44.4%	52.8%	0.09 MB
A36	English, ultra-symmetrical variation	2065	38.6%	52.3%	1.27 MB
A37	English, symmetrical variation	1392	41.6%	51.1%	0.87 MB
A37	English, symmetrical, Botvinnik system reversed	1032	39.6%	51.9%	0.66 MB
A38	English, symmetrical variation	694	44.1%	54.9%	0.46 MB
A38	English, symmetrical, main line with b3	3	66.7%	33.3%	0.00 MB
A38	English, symmetrical, main line with d3	211	44.5%	54.0%	0.14 MB
A39	English, symmetrical, main line with d4	687	42.1%	56.3%	0.45 MB
A40	Beefeater defence	54	31.5%	62.0%	0.03 MB
A40	Modern defence	1853	35.5%	57.0%	1.19 MB
A40	Polish defence	124	32.3%	57.3%	0.09 MB
A40	Queen's pawn	3838	34.8%	55.0%	2.41 MB
A40	Queen's pawn, Charlick (Englund) gambit	34	44.1%	60.3%	0.03 MB
A40	Queen's pawn, English defence	490	45.5%	57.2%	0.31 MB
A40	Queen's pawn, Franco-Indian (Keres) defence	2029	37.0%	56.3%	1.26 MB
A40	Queen's pawn, Keres defence	3402	42.4%	56.2%	2.03 MB
A40	Queen's pawn, Lundin (Kevitz-Mikenas) defence	341	26.4%	56.9%	0.23 MB
A41	Modern defence	156	32.1%	55.8%	0.10 MB
A41	Old Indian defence	1743	32.5%	53.8%	1.08 MB
A41	Old Indian, Tartakower (Wade) variation	1835	33.4%	59.3%	1.16 MB
A41	Queen's Pawn	3130	35.5%	56.0%	1.99 MB
A41	Robatsch defence, Rossolimo variation	217	34.6%	52.3%	0.15 MB
A42	Modern defence, Averbakh system	878	33.5%	59.1%	0.54 MB
A42	Modern defence, Averbakh system, Kotov variation	181	28.7%	63.0%	0.12 MB
A42	Modern defence, Averbakh system, Randspringer variation	15	13.3%	66.7%	0.01 MB
A42	Pterodactyl defence	340	36.8%	63.4%	0.22 MB
A43	Hawk (Habichd) defence	3	66.7%	33.3%	0.00 MB
A43	Old Benoni defence	2665	34.3%	56.8%	1.65 MB
A43	Old Benoni, Franco-Benoni defence	198	33.8%	62.4%	0.13 MB
A43	Old Benoni, Mujannah formation	87	32.2%	63.2%	0.06 MB
A43	Old Benoni, Schmid's system	41	26.8%	59.8%	0.03 MB
A43	Woozle defence	8	0.0%	75.0%	0.01 MB
A44	Old Benoni defence	69	29.0%	59.4%	0.05 MB
A44	Semi-Benoni (`blockade variation')	434	29.0%	59.9%	0.28 MB
A45	Blackmar-Diemer gambit	257	27.6%	52.3%	0.16 MB
A45	Canard opening	17	29.4%	38.2%	0.01 MB
A45	Paleface attack	46	32.6%	51.1%	0.03 MB
A45	Queen's pawn game	4303	37.6%	53.8%	2.72 MB
A45	Queen's pawn, Bronstein gambit	12	33.3%	50.0%	0.01 MB
A45	Trompovsky attack (Ruth, Opovcensky opening)	7608	35.2%	53.2%	4.58 MB
A46	Queen's pawn game	5696	39.7%	54.5%	3.57 MB
A46	Queen's pawn, Torre attack	2256	37.0%	52.3%	1.40 MB
A46	Queen's pawn, Torre attack, Wagner gambit	24	29.2%	47.9%	0.02 MB
A46	Queen's pawn, Yusupov-Rubinstein system	1236	41.4%	52.3%	0.80 MB
A47	Queen's Indian defence	835	37.6%	50.9%	0.56 MB
A47	Queen's Indian, Marienbad system	121	41.3%	52.1%	0.09 MB
A47	Queen's Indian, Marienbad system, Berg variation	21	52.4%	54.8%	0.02 MB
A48	King's Indian, East Indian defence	1474	39.4%	52.7%	0.96 MB
A48	King's Indian, London system	1871	39.7%	53.2%	1.19 MB
A48	King's Indian, Torre attack	2425	40.3%	50.3%	1.52 MB
A49	King's Indian, fianchetto without c4	1765	41.4%	55.5%	1.11 MB
A50	Kevitz-Trajkovich defence	662	33.2%	56.2%	0.43 MB
A50	Queen's Indian accelerated	623	40.4%	57.0%	0.39 MB
A50	Queen's pawn game	1255	37.5%	56.2%	0.83 MB
A51	Budapest defence declined	31	45.2%	61.3%	0.02 MB
A51	Budapest, Fajarowicz variation	414	40.1%	56.8%	0.27 MB
A51	Budapest, Fajarowicz, Steiner variation	50	36.0%	46.0%	0.04 MB
A52	Budapest defence	73	31.5%	54.1%	0.05 MB
A52	Budapest, Adler variation	430	45.6%	57.7%	0.27 MB
A52	Budapest, Alekhine variation	29	31.0%	60.3%	0.02 MB
A52	Budapest, Alekhine variation, Balogh gambit	1	100.0%	50.0%	0.00 MB
A52	Budapest, Alekhine, Abonyi variation	81	29.6%	61.7%	0.05 MB
A52	Budapest, Rubinstein variation	522	42.7%	61.8%	0.35 MB
A53	Old Indian defence	1527	37.5%	58.7%	1.00 MB
A53	Old Indian, Janowski variation	226	33.6%	55.8%	0.16 MB
A54	Old Indian, Dus-Khotimirsky variation	22	27.3%	40.9%	0.02 MB
A54	Old Indian, Ukrainian variation	208	38.5%	54.3%	0.15 MB
A54	Old Indian, Ukrainian variation, 4.Nf3	482	36.5%	54.6%	0.32 MB
A55	Old Indian, main line	604	35.9%	58.4%	0.42 MB
A56	Benoni defence	1091	33.6%	60.3%	0.68 MB
A56	Benoni defence, Hromodka system	639	26.4%	62.4%	0.37 MB
A56	Czech Benoni defence	447	26.8%	66.0%	0.31 MB
A56	Czech Benoni, King's Indian system	65	20.0%	62.3%	0.05 MB
A56	Vulture defence	3	33.3%	83.3%	0.00 MB
A57	Benko gambit	1403	35.1%	56.3%	0.87 MB
A57	Benko gambit half accepted	1297	39.9%	58.6%	0.79 MB
A57	Benko gambit, Zaitsev system	140	37.1%	50.7%	0.09 MB
A58	Benko gambit accepted	1128	37.8%	57.7%	0.70 MB
A58	Benko gambit, Nd2 variation	14	42.9%	57.1%	0.01 MB
A58	Benko gambit, fianchetto variation	188	45.2%	59.8%	0.12 MB
A59	Benko gambit	60	43.3%	65.0%	0.04 MB
A59	Benko gambit, 7.e4	63	31.7%	61.9%	0.04 MB
A59	Benko gambit, Ne2 variation	23	39.1%	50.0%	0.02 MB
A59	Benko gambit, main line	180	42.2%	68.9%	0.11 MB
A60	Benoni defence	413	31.2%	58.2%	0.27 MB
A61	Benoni defence	663	33.3%	61.5%	0.41 MB
A61	Benoni, Nimzovich (knight's tour) variation	600	29.0%	59.7%	0.37 MB
A61	Benoni, Uhlmann variation	223	23.3%	40.4%	0.12 MB
A61	Benoni, fianchetto variation	71	29.6%	58.5%	0.05 MB
A62	Benoni, fianchetto variation	1580	35.6%	55.9%	0.92 MB
A63	Benoni, fianchetto, 9...Nbd7	173	37.0%	64.7%	0.11 MB
A64	Benoni, fianchetto, 11...Re8	260	40.0%	50.0%	0.16 MB
A65	Benoni, 6.e4	615	32.8%	58.0%	0.38 MB
A66	Benoni, Mikenas variation	35	17.1%	54.3%	0.02 MB
A66	Benoni, pawn storm variation	6	50.0%	58.3%	0.00 MB
A67	Benoni, Taimanov variation	372	29.6%	62.6%	0.20 MB
A68	Benoni, four pawns attack	125	35.2%	58.4%	0.08 MB
A69	Benoni, four pawns attack, main line	159	39.6%	55.0%	0.10 MB
A70	Benoni, classical with e4 and Nf3	880	38.1%	60.2%	0.54 MB
A70	Benoni, classical without 9.O-O	20	10.0%	55.0%	0.01 MB
A71	Benoni, classical, 8.Bg5	171	35.1%	56.7%	0.12 MB
A72	Benoni, classical without 9.O-O	159	44.7%	65.7%	0.11 MB
A73	Benoni, classical, 9.O-O	131	31.3%	59.2%	0.09 MB
A74	Benoni, classical, 9...a6, 10.a4	40	32.5%	63.8%	0.03 MB
A75	Benoni, classical with ...a6 and 10...Bg4	141	34.0%	62.4%	0.09 MB
A76	Benoni, classical, 9...Re8	233	39.9%	61.6%	0.16 MB
A77	Benoni, classical, 9...Re8, 10.Nd2	235	34.0%	63.4%	0.16 MB
A78	Benoni, classical with ...Re8 and ...Na6	128	32.0%	61.3%	0.08 MB
A79	Benoni, classical, 11.f3	105	31.4%	62.4%	0.07 MB
A80	Dutch	3643	34.8%	54.6%	2.23 MB
A80	Dutch, 2.Bg5 variation	1882	32.7%	54.2%	1.16 MB
A80	Dutch, Korchnoi attack	80	26.3%	48.1%	0.06 MB
A80	Dutch, Krejcik gambit	321	32.4%	53.6%	0.19 MB
A80	Dutch, Manhattan (Alapin, Ulvestad) variation	51	23.5%	51.0%	0.03 MB
A80	Dutch, Spielmann gambit	4	50.0%	50.0%	0.00 MB
A80	Dutch, Von Pretzel gambit	2	0.0%	100.0%	0.00 MB
A81	Dutch defence	5055	38.5%	57.0%	3.11 MB
A81	Dutch defence, Blackburne variation	80	31.3%	53.1%	0.05 MB
A81	Dutch, Leningrad, Basman system	12	50.0%	58.3%	0.01 MB
A81	Dutch, Leningrad, Karlsbad variation	12	50.0%	50.0%	0.01 MB
A82	Dutch, Balogh defence	28	50.0%	60.7%	0.02 MB
A82	Dutch, Staunton gambit	223	36.3%	44.6%	0.14 MB
A82	Dutch, Staunton gambit, Tartakower variation	18	27.8%	58.3%	0.01 MB
A83	Dutch, Staunton gambit, Alekhine variation	5	40.0%	40.0%	0.00 MB
A83	Dutch, Staunton gambit, Chigorin variation	107	31.8%	52.3%	0.07 MB
A83	Dutch, Staunton gambit, Lasker variation	33	36.4%	57.6%	0.02 MB
A83	Dutch, Staunton gambit, Nimzovich variation	4	50.0%	25.0%	0.00 MB
A83	Dutch, Staunton gambit, Staunton's line	287	39.0%	50.2%	0.18 MB
A84	Dutch defence	878	36.9%	56.7%	0.58 MB
A84	Dutch defence, Rubinstein variation	511	31.9%	57.4%	0.32 MB
A84	Dutch, Staunton gambit deferred	11	45.5%	31.8%	0.01 MB
A85	Dutch with c4 & Nc3	1000	33.2%	54.9%	0.62 MB
A86	Dutch with c4 & g3	187	36.9%	60.7%	0.13 MB
A86	Dutch, Hort-Antoshin system	12	41.7%	54.2%	0.01 MB
A86	Dutch, Leningrad variation	335	37.9%	57.2%	0.22 MB
A87	Dutch, Leningrad, main variation	603	39.0%	56.0%	0.40 MB
A88	Dutch, Leningrad, main variation with c6	1355	40.5%	58.5%	0.87 MB
A89	Dutch, Leningrad, main variation with Nc6	634	35.2%	61.9%	0.42 MB
A90	Dutch defence	1395	38.9%	60.3%	0.91 MB
A90	Dutch defence, Dutch-Indian (Nimzo-Dutch) variation	312	36.9%	60.7%	0.22 MB
A90	Dutch-Indian, Alekhine variation	109	31.2%	57.8%	0.08 MB
A91	Dutch defence	241	33.2%	52.7%	0.16 MB
A92	Dutch defence	142	39.4%	62.0%	0.09 MB
A92	Dutch defence, Alekhine variation	62	41.9%	59.7%	0.05 MB
A92	Dutch, stonewall variation	147	40.1%	60.9%	0.11 MB
A92	Dutch, stonewall with Nc3	38	44.7%	48.7%	0.03 MB
A93	Dutch, stonewall, Botwinnik variation	298	39.3%	60.9%	0.19 MB
A94	Dutch, stonewall with Ba3	135	43.7%	56.7%	0.10 MB
A95	Dutch, stonewall with Nc3	321	32.4%	58.9%	0.22 MB
A95	Dutch, stonewall: Chekhover variation	1	100.0%	50.0%	0.00 MB
A96	Dutch, classical variation	577	35.7%	59.3%	0.38 MB
A97	Dutch, Ilyin-Genevsky variation	179	36.9%	55.3%	0.13 MB
A97	Dutch, Ilyin-Genevsky, Winter variation	191	40.3%	63.6%	0.13 MB
A98	Dutch, Ilyin-Genevsky variation with Qc2	218	30.3%	58.3%	0.14 MB
A99	Dutch, Ilyin-Genevsky variation with b3	399	39.1%	60.9%	0.27 MB
B00	Barnes defence	14	42.9%	78.6%	0.01 MB
B00	Carr's defence	4	50.0%	50.0%	0.00 MB
B00	Corn stalk defence	6	33.3%	33.3%	0.00 MB
B00	Fred	8	0.0%	75.0%	0.01 MB
B00	KP, Colorado counter	12	41.7%	70.8%	0.01 MB
B00	KP, Nimzovich defence	1081	32.7%	58.7%	0.70 MB
B00	KP, Nimzovich defence, Bogolyubov variation	148	29.7%	60.1%	0.10 MB
B00	KP, Nimzovich defence, Marshall gambit	6	16.7%	25.0%	0.01 MB
B00	King's pawn opening	2743	34.5%	57.0%	1.73 MB
B00	Lemming defence	12	33.3%	58.3%	0.01 MB
B00	Owen defence	511	33.7%	60.7%	0.33 MB
B00	Reversed Grob (Borg/Basman defence/macho Grob)	52	19.2%	71.2%	0.04 MB
B00	St. George (Baker) defence	53	32.1%	59.4%	0.04 MB
B01	Scandinavian (centre counter) defence	3862	39.8%	57.7%	2.39 MB
B01	Scandinavian defence	1640	39.6%	58.5%	1.04 MB
B01	Scandinavian defence, Gruenfeld variation	4	0.0%	75.0%	0.00 MB
B01	Scandinavian defence, Lasker variation	146	33.6%	65.4%	0.09 MB
B01	Scandinavian gambit	205	42.9%	55.1%	0.14 MB
B01	Scandinavian, Anderssen counter-attack orthodox attack	1	0.0%	100.0%	0.00 MB
B01	Scandinavian, Anderssen counter-attack, Collijn variation	1	0.0%	100.0%	0.00 MB
B01	Scandinavian, Icelandic gambit	70	45.7%	57.1%	0.05 MB
B01	Scandinavian, Kiel variation	7	28.6%	85.7%	0.01 MB
B01	Scandinavian, Marshall variation	740	43.2%	59.9%	0.47 MB
B01	Scandinavian, Mieses-Kotrvc gambit	13	53.8%	50.0%	0.01 MB
B01	Scandinavian, Pytel-Wade variation	3509	43.1%	58.1%	2.12 MB
B01	Scandinavian, Richter variation	12	16.7%	66.7%	0.01 MB
B02	Alekhine's defence	810	34.3%	54.7%	0.52 MB
B02	Alekhine's defence, Brooklyn defence	27	40.7%	61.1%	0.02 MB
B02	Alekhine's defence, Kmoch variation	15	20.0%	36.7%	0.01 MB
B02	Alekhine's defence, Krejcik variation	20	35.0%	47.5%	0.02 MB
B02	Alekhine's defence, Maroczy variation	169	35.5%	57.4%	0.12 MB
B02	Alekhine's defence, Mokele Mbembe (Buecker) variation	2	50.0%	25.0%	0.00 MB
B02	Alekhine's defence, Saemisch attack	484	34.9%	49.7%	0.31 MB
B02	Alekhine's defence, Scandinavian variation	530	37.5%	55.6%	0.35 MB
B02	Alekhine's defence, Spielmann variation	24	29.2%	47.9%	0.02 MB
B02	Alekhine's defence, Steiner variation	23	39.1%	50.0%	0.02 MB
B02	Alekhine's defence, Two pawns' (Lasker's) attack	410	40.7%	52.6%	0.27 MB
B02	Alekhine's defence, Two pawns' attack, Mikenas variation	2	0.0%	0.0%	0.00 MB
B02	Alekhine's defence, Welling variation	10	20.0%	50.0%	0.01 MB
B03	Alekhine's defence	199	38.2%	59.3%	0.13 MB
B03	Alekhine's defence, Balogh variation	59	39.0%	58.5%	0.04 MB
B03	Alekhine's defence, exchange variation	891	38.7%	59.5%	0.56 MB
B03	Alekhine's defence, exchange, Karpov variation	16	62.5%	56.3%	0.01 MB
B03	Alekhine's defence, four pawns attack	307	33.6%	65.3%	0.19 MB
B03	Alekhine's defence, four pawns attack, 6...Nc6	24	29.2%	52.1%	0.02 MB
B03	Alekhine's defence, four pawns attack, 7.Be3	176	33.5%	70.2%	0.11 MB
B03	Alekhine's defence, four pawns attack, Ilyin-Genevsky var.	7	42.9%	21.4%	0.01 MB
B03	Alekhine's defence, four pawns attack, Planinc variation	11	36.4%	36.4%	0.01 MB
B03	Alekhine's defence, four pawns attack, Trifunovic variation	110	31.8%	69.5%	0.07 MB
B03	Alekhine's defence, four pawns attack, fianchetto variation	153	33.3%	60.5%	0.09 MB
B04	Alekhine's defence, modern variation	336	36.0%	60.9%	0.22 MB
B04	Alekhine's defence, modern, Keres variation	93	39.8%	67.2%	0.07 MB
B04	Alekhine's defence, modern, Larsen variation	1248	42.7%	59.3%	0.80 MB
B04	Alekhine's defence, modern, Schmid variation	184	40.2%	59.8%	0.14 MB
B04	Alekhine's defence, modern, fianchetto variation	959	38.0%	57.7%	0.62 MB
B05	Alekhine's defence, modern variation, 4...Bg4	818	32.6%	64.6%	0.54 MB
B05	Alekhine's defence, modern, Alekhine variation	8	37.5%	43.8%	0.01 MB
B05	Alekhine's defence, modern, Flohr variation	207	38.6%	59.9%	0.14 MB
B05	Alekhine's defence, modern, Panov variation	29	41.4%	48.3%	0.02 MB
B05	Alekhine's defence, modern, Vitolins attack	40	45.0%	55.0%	0.03 MB
B06	Norwegian defence	6	66.7%	50.0%	0.00 MB
B06	Robatsch (modern) defence	9646	35.6%	56.4%	5.78 MB
B06	Robatsch defence	1113	36.1%	58.8%	0.70 MB
B06	Robatsch defence, Gurgenidze variation	96	34.4%	63.0%	0.07 MB
B06	Robatsch defence, Pseudo-Austrian attack	671	36.7%	53.8%	0.43 MB
B06	Robatsch defence, Two knights variation	418	32.5%	59.6%	0.27 MB
B06	Robatsch defence, Two knights, Suttles variation	1152	38.0%	58.0%	0.75 MB
B06	Robatsch defence, three pawns attack	223	28.3%	59.4%	0.15 MB
B07	Pirc defence	2658	36.0%	56.5%	1.62 MB
B07	Pirc, 150 attack	310	38.1%	61.6%	0.20 MB
B07	Pirc, Byrne variation	576	34.0%	57.1%	0.36 MB
B07	Pirc, Chinese variation	6	50.0%	41.7%	0.01 MB
B07	Pirc, Holmov system	77	39.0%	53.2%	0.05 MB
B07	Pirc, Sveshnikov system	418	37.6%	52.3%	0.27 MB
B07	Pirc, Ufimtsev-Pytel variation	725	34.8%	58.1%	0.48 MB
B07	Pirc, bayonet (Mariotti) attack	55	41.8%	53.6%	0.04 MB
B07	Robatsch defence, Geller's system	784	36.4%	57.5%	0.53 MB
B08	Pirc, classical (two knights) system	977	38.0%	58.9%	0.64 MB
B08	Pirc, classical system, 5.Be2	3223	39.5%	58.1%	2.08 MB
B08	Pirc, classical, h3 system	573	38.4%	58.8%	0.38 MB
B09	Pirc, Austrian attack	243	37.9%	60.1%	0.17 MB
B09	Pirc, Austrian attack, 6.Bd3	1655	40.2%	60.3%	1.00 MB
B09	Pirc, Austrian attack, 6.Be3	418	32.8%	57.1%	0.26 MB
B09	Pirc, Austrian attack, 6.e5	144	38.9%	56.9%	0.10 MB
B09	Pirc, Austrian attack, Ljubojevic variation	33	30.3%	48.5%	0.02 MB
B09	Pirc, Austrian attack, dragon formation	973	40.0%	58.2%	0.58 MB
B10	Caro-Kann defence	3280	35.6%	52.6%	2.03 MB
B10	Caro-Kann, Goldman (Spielmann) variation	150	36.0%	51.3%	0.10 MB
B10	Caro-Kann, Hillbilly attack	2	0.0%	50.0%	0.00 MB
B10	Caro-Kann, Two knights variation	800	37.9%	57.3%	0.52 MB
B10	Caro-Kann, anti-Caro-Kann defence	813	31.6%	60.0%	0.53 MB
B10	Caro-Kann, anti-anti-Caro-Kann defence	1752	48.8%	53.1%	1.10 MB
B10	Caro-Kann, closed (Breyer) variation	1466	38.2%	53.1%	0.95 MB
B11	Caro-Kann, Two knights, 3...Bg4	1443	40.1%	55.2%	0.90 MB
B12	Caro-Kann defence	397	32.5%	57.3%	0.26 MB
B12	Caro-Kann, 3.Nd2	261	36.0%	59.8%	0.17 MB
B12	Caro-Kann, Edinburgh variation	77	42.9%	56.5%	0.05 MB
B12	Caro-Kann, Tartakower (fantasy) variation	1048	37.5%	55.7%	0.65 MB
B12	Caro-Kann, advance variation	14400	38.2%	56.4%	8.37 MB
B12	Caro-Kann, advance, Short variation	67	29.9%	61.2%	0.04 MB
B12	Caro-Masi defence	1	100.0%	50.0%	0.00 MB
B12	de Bruycker defence	25	8.0%	56.0%	0.02 MB
B13	Caro-Kann, Panov-Botvinnik attack	1420	48.0%	52.7%	0.87 MB
B13	Caro-Kann, Panov-Botvinnik, Czerniak variation	54	38.9%	49.1%	0.04 MB
B13	Caro-Kann, Panov-Botvinnik, Gunderam attack	28	32.1%	44.6%	0.02 MB
B13	Caro-Kann, Panov-Botvinnik, Herzog defence	23	34.8%	52.2%	0.02 MB
B13	Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation	7	42.9%	64.3%	0.01 MB
B13	Caro-Kann, Panov-Botvinnik, normal variation	148	47.3%	55.4%	0.10 MB
B13	Caro-Kann, exchange variation	1380	40.7%	52.4%	0.89 MB
B13	Caro-Kann, exchange, Rubinstein variation	232	39.2%	54.5%	0.16 MB
B14	Caro-Kann, Panov-Botvinnik attack, 5...e6	2315	47.7%	55.5%	1.48 MB
B14	Caro-Kann, Panov-Botvinnik attack, 5...g6	439	52.2%	52.5%	0.29 MB
B15	Caro-Kann defence	372	30.9%	55.5%	0.24 MB
B15	Caro-Kann, Alekhine gambit	44	36.4%	45.5%	0.03 MB
B15	Caro-Kann, Forgacs variation	302	45.0%	56.6%	0.20 MB
B15	Caro-Kann, Gurgenidze counter-attack	8	50.0%	62.5%	0.01 MB
B15	Caro-Kann, Gurgenidze system	472	37.3%	58.1%	0.32 MB
B15	Caro-Kann, Rasa-Studier gambit	18	22.2%	27.8%	0.02 MB
B15	Caro-Kann, Tartakower (Nimzovich) variation	580	42.6%	56.3%	0.39 MB
B16	Caro-Kann, Bronstein-Larsen variation	644	33.1%	60.6%	0.42 MB
B17	Caro-Kann, Steinitz variation	4647	43.7%	53.6%	2.86 MB
B18	Caro-Kann, classical variation	2174	45.8%	54.6%	1.35 MB
B18	Caro-Kann, classical, 6.h4	752	42.7%	54.6%	0.47 MB
B18	Caro-Kann, classical, Flohr variation	148	52.0%	55.7%	0.10 MB
B18	Caro-Kann, classical, Maroczy attack	12	16.7%	41.7%	0.01 MB
B19	Caro-Kann, classical, 7...Nd7	431	49.4%	52.6%	0.27 MB
B19	Caro-Kann, classical, Spassky variation	2909	40.5%	56.5%	1.71 MB
B20	Sicilian defence	3684	34.1%	50.3%	2.29 MB
B20	Sicilian, Gloria variation	14	21.4%	46.4%	0.01 MB
B20	Sicilian, Keres variation (2.Ne2)	1322	38.8%	52.1%	0.82 MB
B20	Sicilian, Steinitz variation	642	38.5%	51.0%	0.43 MB
B20	Sicilian, wing gambit	103	33.0%	44.7%	0.07 MB
B20	Sicilian, wing gambit, Carlsbad variation	34	44.1%	48.5%	0.02 MB
B20	Sicilian, wing gambit, Marienbad variation	1	0.0%	0.0%	0.00 MB
B20	Sicilian, wing gambit, Marshall variation	96	28.1%	56.8%	0.06 MB
B21	Sicilian, Andreaschek gambit	19	47.4%	55.3%	0.01 MB
B21	Sicilian, Grand Prix attack	2019	34.7%	52.4%	1.25 MB
B21	Sicilian, Smith-Morra gambit	1066	40.3%	47.8%	0.67 MB
B22	Sicilian, 2.c3, Heidenfeld variation	62	25.8%	45.2%	0.04 MB
B22	Sicilian, Alapin's variation (2.c3)	8550	43.5%	54.6%	5.28 MB
B23	Sicilian, Grand Prix attack	1035	37.0%	49.3%	0.64 MB
B23	Sicilian, Grand Prix attack, Schofman variation	160	41.9%	52.2%	0.10 MB
B23	Sicilian, chameleon variation	1005	35.7%	57.0%	0.63 MB
B23	Sicilian, closed	5195	37.3%	51.7%	3.15 MB
B23	Sicilian, closed, 2...Nc6	2761	39.8%	52.7%	1.73 MB
B23	Sicilian, closed, Korchnoi variation	256	47.7%	50.4%	0.18 MB
B24	Sicilian, closed	686	36.7%	51.0%	0.44 MB
B24	Sicilian, closed, Smyslov variation	27	29.6%	59.3%	0.02 MB
B25	Sicilian, closed	386	35.2%	50.3%	0.26 MB
B25	Sicilian, closed, 6.Ne2 e5 (Botvinnik)	82	31.7%	50.0%	0.06 MB
B25	Sicilian, closed, 6.f4	560	39.1%	49.4%	0.37 MB
B25	Sicilian, closed, 6.f4 e5 (Botvinnik)	46	45.7%	59.8%	0.04 MB
B26	Sicilian, closed, 6.Be3	835	33.7%	49.9%	0.53 MB
B27	Sicilian defence	55	34.5%	62.7%	0.04 MB
B27	Sicilian, Acton extension	4	25.0%	87.5%	0.00 MB
B27	Sicilian, Hungarian variation	3947	39.8%	57.7%	2.55 MB
B27	Sicilian, Katalimov variation	218	40.8%	58.5%	0.15 MB
B27	Sicilian, Quinteros variation	82	35.4%	61.6%	0.06 MB
B27	Sicilian, Stiletto (Althouse) variation	4	50.0%	25.0%	0.00 MB
B28	Sicilian, O'Kelly variation	1022	36.9%	58.3%	0.65 MB
B29	Sicilian, Nimzovich-Rubinstein variation	1250	39.9%	58.4%	0.78 MB
B29	Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit	72	59.7%	53.5%	0.05 MB
B30	Sicilian defence	4129	40.7%	54.4%	2.59 MB
B30	Sicilian, Nimzovich-Rossolimo attack (without ...d6)	6580	38.5%	56.5%	4.01 MB
B31	Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)	4577	41.6%	56.3%	2.78 MB
B31	Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation	45	48.9%	48.9%	0.03 MB
B32	Sicilian defence	1246	38.9%	55.4%	0.79 MB
B32	Sicilian, Flohr variation	351	37.0%	58.4%	0.23 MB
B32	Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation	1707	41.0%	57.1%	1.07 MB
B32	Sicilian, Labourdonnais-Loewenthal variation	402	38.8%	57.0%	0.26 MB
B32	Sicilian, Nimzovich variation	37	43.2%	54.1%	0.02 MB
B33	Sicilian defence	643	39.7%	55.3%	0.41 MB
B33	Sicilian, Pelikan (Lasker/Sveshnikov) variation	1420	35.6%	55.5%	0.85 MB
B33	Sicilian, Pelikan, Bird variation	273	36.3%	64.7%	0.18 MB
B33	Sicilian, Pelikan, Chelyabinsk variation	2488	37.3%	57.7%	1.47 MB
B33	Sicilian, Sveshnikov variation	1668	40.3%	50.8%	0.96 MB
B34	Sicilian, accelerated fianchetto, exchange variation	38	39.5%	48.7%	0.03 MB
B34	Sicilian, accelerated fianchetto, modern variation	621	39.0%	53.3%	0.41 MB
B35	Sicilian, accelerated fianchetto, modern variation with Bc4	2543	43.5%	53.8%	1.59 MB
B36	Sicilian, accelerated fianchetto, Gurgenidze variation	365	48.8%	60.5%	0.25 MB
B36	Sicilian, accelerated fianchetto, Maroczy bind	1205	45.4%	58.4%	0.80 MB
B37	Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg7	223	43.0%	55.6%	0.15 MB
B37	Sicilian, accelerated fianchetto, Simagin variation	2	100.0%	50.0%	0.00 MB
B38	Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3	1253	42.9%	58.2%	0.82 MB
B39	Sicilian, accelerated fianchetto, Breyer variation	723	41.6%	58.3%	0.48 MB
B40	Sicilian defence	8125	39.0%	54.0%	5.03 MB
B40	Sicilian, Anderssen variation	1077	40.5%	57.1%	0.70 MB
B40	Sicilian, Marshall variation	8	25.0%	75.0%	0.01 MB
B40	Sicilian, Pin variation (Sicilian counter-attack)	38	34.2%	64.5%	0.03 MB
B40	Sicilian, Pin, Jaffe variation	4	0.0%	100.0%	0.00 MB
B40	Sicilian, Pin, Koch variation	85	23.5%	76.5%	0.06 MB
B41	Sicilian, Kan variation	270	42.2%	54.4%	0.18 MB
B41	Sicilian, Kan, Maroczy bind (Reti variation)	714	37.7%	58.8%	0.46 MB
B41	Sicilian, Kan, Maroczy bind - Bronstein variation	35	40.0%	37.1%	0.02 MB
B42	Sicilian, Kan, 5.Bd3	2549	39.2%	58.1%	1.62 MB
B42	Sicilian, Kan, Gipslis variation	88	38.6%	63.6%	0.07 MB
B42	Sicilian, Kan, Polugaievsky variation	1901	38.2%	55.0%	1.19 MB
B42	Sicilian, Kan, Swiss cheese variation	340	35.9%	61.2%	0.23 MB
B43	Sicilian, Kan, 5.Nc3	4173	39.3%	56.2%	2.52 MB
B44	Sicilian defence	412	43.0%	53.0%	0.27 MB
B44	Sicilian, Szen (`anti-Taimanov') variation	1046	42.8%	53.0%	0.70 MB
B44	Sicilian, Szen variation, Dely-Kasparov gambit	33	57.6%	62.1%	0.02 MB
B44	Sicilian, Szen, hedgehog variation	252	41.3%	50.8%	0.17 MB
B45	Sicilian, Taimanov variation	2455	38.5%	56.8%	1.47 MB
B45	Sicilian, Taimanov, American attack	19	42.1%	42.1%	0.01 MB
B46	Sicilian, Taimanov variation	3960	39.1%	55.8%	2.43 MB
B47	Sicilian, Taimanov (Bastrikov) variation	4643	42.1%	54.4%	2.85 MB
B48	Sicilian, Taimanov variation	4132	37.9%	56.4%	2.46 MB
B49	Sicilian, Taimanov variation	816	44.1%	57.5%	0.56 MB
B50	Sicilian	6918	40.0%	52.6%	4.35 MB
B50	Sicilian, wing gambit deferred	35	34.3%	42.9%	0.03 MB
B51	Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack	2851	40.0%	55.1%	1.80 MB
B52	Sicilian, Canal-Sokolsky attack, 3...Bd7	2614	42.4%	50.7%	1.63 MB
B52	Sicilian, Canal-Sokolsky attack, Bronstein gambit	220	40.9%	58.2%	0.14 MB
B52	Sicilian, Canal-Sokolsky attack, Sokolsky variation	1190	45.1%	55.5%	0.73 MB
B53	Sicilian, Chekhover variation	2278	42.1%	52.0%	1.46 MB
B53	Sicilian, Chekhover, Zaitsev variation	104	32.7%	59.6%	0.07 MB
B54	Sicilian	1448	37.9%	55.1%	0.94 MB
B54	Sicilian, Prins (Moscow) variation	858	38.7%	54.9%	0.56 MB
B55	Sicilian, Prins variation, Venice attack	103	39.8%	51.0%	0.06 MB
B56	Sicilian	2293	39.3%	53.2%	1.44 MB
B56	Sicilian, Venice attack	85	37.6%	58.8%	0.06 MB
B57	Sicilian, Magnus Smith trap	11	45.5%	40.9%	0.01 MB
B57	Sicilian, Sozin, Benko variation	1470	39.4%	51.7%	0.98 MB
B57	Sicilian, Sozin, not Scheveningen	321	41.4%	55.6%	0.22 MB
B58	Sicilian, Boleslavsky variation	512	37.5%	48.4%	0.33 MB
B58	Sicilian, Boleslavsky, Louma variation	54	35.2%	54.6%	0.04 MB
B58	Sicilian, classical	257	42.8%	49.0%	0.18 MB
B59	Sicilian, Boleslavsky variation, 7.Nb3	210	48.6%	52.9%	0.15 MB
B60	Sicilian, Richter-Rauzer	969	36.0%	58.5%	0.61 MB
B60	Sicilian, Richter-Rauzer, Bondarevsky variation	45	46.7%	65.6%	0.03 MB
B60	Sicilian, Richter-Rauzer, Larsen variation	188	30.9%	61.2%	0.12 MB
B61	Sicilian, Richter-Rauzer, Larsen variation, 7.Qd2	694	36.7%	62.0%	0.43 MB
B62	Sicilian, Richter-Rauzer, 6...e6	66	42.4%	59.1%	0.06 MB
B62	Sicilian, Richter-Rauzer, Keres variation	120	31.7%	49.2%	0.08 MB
B62	Sicilian, Richter-Rauzer, Margate (Alekhine) variation	116	38.8%	49.6%	0.08 MB
B62	Sicilian, Richter-Rauzer, Podvebrady variation	24	45.8%	35.4%	0.02 MB
B62	Sicilian, Richter-Rauzer, Richter attack	7	14.3%	50.0%	0.01 MB
B63	Sicilian, Richter-Rauzer, Rauzer attack	178	37.6%	57.0%	0.12 MB
B63	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7	1413	38.4%	56.8%	0.85 MB
B64	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f4	350	38.6%	57.6%	0.22 MB
B64	Sicilian, Richter-Rauzer, Rauzer attack, Geller variation	12	41.7%	62.5%	0.01 MB
B65	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4	652	41.9%	55.4%	0.39 MB
B66	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6	6125	34.0%	51.8%	3.53 MB
B67	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7	3280	34.1%	55.6%	1.93 MB
B68	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be7	162	34.6%	56.2%	0.11 MB
B69	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf6	141	28.4%	58.9%	0.09 MB
B70	Sicilian, dragon variation	1082	43.8%	52.2%	0.70 MB
B71	Sicilian, dragon, Levenfish variation	445	36.6%	52.7%	0.27 MB
B71	Sicilian, dragon, Levenfish; Flohr variation	52	40.4%	58.7%	0.04 MB
B72	Sicilian, dragon, 6.Be3	227	33.5%	51.5%	0.14 MB
B72	Sicilian, dragon, classical attack	168	42.9%	55.4%	0.12 MB
B72	Sicilian, dragon, classical, Amsterdam variation	65	29.2%	48.5%	0.05 MB
B72	Sicilian, dragon, classical, Grigoriev variation	57	47.4%	50.0%	0.04 MB
B72	Sicilian, dragon, classical, Nottingham variation	55	43.6%	54.5%	0.04 MB
B73	Sicilian, dragon, classical, 8.O-O	469	47.5%	53.6%	0.32 MB
B73	Sicilian, dragon, classical, Richter variation	183	49.7%	57.7%	0.13 MB
B73	Sicilian, dragon, classical, Zollner gambit	12	33.3%	41.7%	0.01 MB
B74	Sicilian, dragon, classical, 9.Nb3	558	49.1%	49.1%	0.38 MB
B74	Sicilian, dragon, classical, Alekhine variation	29	51.7%	63.8%	0.02 MB
B74	Sicilian, dragon, classical, Reti-Tartakower variation	102	45.1%	53.9%	0.07 MB
B74	Sicilian, dragon, classical, Spielmann variation	10	30.0%	55.0%	0.01 MB
B75	Sicilian, dragon, Yugoslav attack	515	32.4%	57.8%	0.31 MB
B76	Sicilian, dragon, Yugoslav attack, 7...O-O	426	35.4%	54.3%	0.27 MB
B76	Sicilian, dragon, Yugoslav attack, Rauser variation	1168	34.2%	62.8%	0.67 MB
B77	Sicilian, dragon, Yugoslav attack, 9...Bd7	268	38.8%	56.7%	0.16 MB
B77	Sicilian, dragon, Yugoslav attack, 9.Bc4	156	37.2%	55.1%	0.11 MB
B77	Sicilian, dragon, Yugoslav attack, Byrne variation	18	44.4%	66.7%	0.01 MB
B78	Sicilian, dragon, Yugoslav attack, 10.O-O-O	514	29.2%	56.6%	0.30 MB
B79	Sicilian, dragon, Yugoslav attack, 12.h4	16	25.0%	62.5%	0.01 MB
B80	Sicilian, Scheveningen variation	1445	32.0%	54.3%	0.89 MB
B80	Sicilian, Scheveningen, English variation	219	34.2%	55.0%	0.14 MB
B80	Sicilian, Scheveningen, Vitolins variation	56	44.6%	50.9%	0.04 MB
B80	Sicilian, Scheveningen, fianchetto variation	253	30.4%	51.6%	0.18 MB
B81	Sicilian, Scheveningen, Keres attack	2556	34.5%	60.2%	1.46 MB
B82	Sicilian, Scheveningen, 6.f4	628	36.3%	56.7%	0.40 MB
B82	Sicilian, Scheveningen, Tal variation	158	34.2%	64.6%	0.09 MB
B83	Sicilian, Scheveningen, 6.Be2	621	41.2%	52.8%	0.42 MB
B83	Sicilian, modern Scheveningen	574	43.7%	50.4%	0.40 MB
B83	Sicilian, modern Scheveningen, main line	600	45.0%	53.0%	0.40 MB
B83	Sicilian, modern Scheveningen, main line with Nb3	107	36.4%	55.6%	0.07 MB
B84	Sicilian, Scheveningen (Paulsen), classical variation	4353	39.9%	52.4%	2.69 MB
B84	Sicilian, Scheveningen, classical, Nd7 system	129	33.3%	50.8%	0.08 MB
B85	Sicilian, Scheveningen, classical	152	40.1%	50.3%	0.11 MB
B85	Sicilian, Scheveningen, classical main line	407	46.2%	56.8%	0.27 MB
B85	Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6	4	50.0%	50.0%	0.00 MB
B85	Sicilian, Scheveningen, classical, Maroczy system	26	34.6%	55.8%	0.02 MB
B86	Sicilian, Sozin attack	300	44.3%	53.2%	0.20 MB
B87	Sicilian, Sozin with ...a6 and ...b5	926	37.3%	49.6%	0.60 MB
B88	Sicilian, Sozin, Fischer variation	16	50.0%	50.0%	0.01 MB
B88	Sicilian, Sozin, Leonhardt variation	725	39.3%	55.1%	0.46 MB
B89	Sicilian, Sozin, 7.Be3	1162	37.7%	51.5%	0.72 MB
B89	Sicilian, Velimirovic attack	858	34.3%	51.9%	0.54 MB
B90	Sicilian, Najdorf	4157	37.3%	54.0%	2.45 MB
B90	Sicilian, Najdorf, Adams attack	2151	40.4%	53.6%	1.24 MB
B90	Sicilian, Najdorf, Byrne (English) attack	23304	36.2%	53.3%	13.23 MB
B90	Sicilian, Najdorf, Lipnitzky attack	1459	37.5%	50.3%	0.88 MB
B91	Sicilian, Najdorf, Zagreb (fianchetto) variation	1301	41.5%	54.0%	0.80 MB
B92	Sicilian, Najdorf, Opovcensky variation	6449	41.6%	53.4%	3.99 MB
B93	Sicilian, Najdorf, 6.f4	2055	40.3%	51.1%	1.24 MB
B94	Sicilian, Najdorf, 6.Bg5	1360	38.6%	53.1%	0.83 MB
B95	Sicilian, Najdorf, 6...e6	1586	38.7%	50.2%	0.95 MB
B96	Sicilian, Najdorf, 7.f4	1821	36.9%	51.9%	1.03 MB
B96	Sicilian, Najdorf, Polugayevsky variation	129	39.5%	54.7%	0.08 MB
B96	Sicilian, Najdorf, Polugayevsky, Simagin variation	42	19.0%	52.4%	0.03 MB
B97	Sicilian, Najdorf, 7...Qb6	1910	34.9%	47.4%	1.13 MB
B97	Sicilian, Najdorf, Poisoned pawn variation	1309	46.3%	50.6%	0.66 MB
B98	Sicilian, Najdorf variation	371	29.4%	57.5%	0.23 MB
B98	Sicilian, Najdorf, 7...Be7	152	34.9%	55.6%	0.10 MB
B98	Sicilian, Najdorf, Browne variation	56	30.4%	63.4%	0.04 MB
B98	Sicilian, Najdorf, Goteborg (Argentine) variation	23	47.8%	50.0%	0.02 MB
B99	Sicilian, Najdorf, 7...Be7 main line	682	30.2%	53.7%	0.37 MB
C00	French defence	1110	30.4%	56.2%	0.71 MB
C00	French defence, Steiner variation	1002	42.7%	51.6%	0.65 MB
C00	French, Alapin variation	18	27.8%	58.3%	0.02 MB
C00	French, Chigorin variation	1345	31.8%	50.3%	0.85 MB
C00	French, King's Indian attack	3000	36.1%	51.7%	1.93 MB
C00	French, Labourdonnais variation	306	29.4%	45.1%	0.20 MB
C00	French, Pelikan variation	76	39.5%	51.3%	0.06 MB
C00	French, Reti (Spielmann) variation	256	35.5%	51.4%	0.16 MB
C00	French, Reversed Philidor formation	17	23.5%	64.7%	0.02 MB
C00	French, Schlechter variation	254	41.7%	52.4%	0.18 MB
C00	French, Steinitz attack	33	30.3%	45.5%	0.03 MB
C00	French, Two knights variation	365	35.6%	53.2%	0.24 MB
C00	French, Wing gambit	68	41.2%	60.3%	0.04 MB
C00	Lengfellner system	25	24.0%	60.0%	0.02 MB
C00	St. George defence	209	46.4%	59.1%	0.15 MB
C01	French, exchange variation	2139	44.3%	53.4%	1.35 MB
C01	French, exchange, Bogolyubov variation	10	50.0%	45.0%	0.01 MB
C01	French, exchange, Svenonius variation	87	36.8%	51.7%	0.06 MB
C02	French, advance variation	1719	32.1%	56.5%	1.07 MB
C02	French, advance, Euwe variation	1827	36.5%	55.4%	1.13 MB
C02	French, advance, Milner-Barry gambit	144	36.8%	49.0%	0.10 MB
C02	French, advance, Nimzovich system	151	28.5%	50.7%	0.10 MB
C02	French, advance, Nimzovich variation	18	27.8%	47.2%	0.01 MB
C02	French, advance, Paulsen attack	2239	33.9%	55.0%	1.37 MB
C02	French, advance, Steinitz variation	687	40.5%	57.6%	0.42 MB
C02	French, advance, Wade variation	425	39.3%	58.5%	0.27 MB
C03	French, Tarrasch	3268	43.5%	57.0%	2.03 MB
C03	French, Tarrasch, Guimard variation	157	31.2%	62.1%	0.11 MB
C03	French, Tarrasch, Haberditz variation	6	16.7%	75.0%	0.00 MB
C04	French, Tarrasch, Guimard main line	591	29.3%	60.8%	0.39 MB
C05	French, Tarrasch, Botvinnik variation	114	35.1%	65.8%	0.08 MB
C05	French, Tarrasch, closed variation	1552	31.2%	60.6%	0.93 MB
C06	French, Tarrasch, Leningrad variation	19	21.1%	84.2%	0.02 MB
C06	French, Tarrasch, closed variation, main line	1171	38.9%	59.8%	0.73 MB
C07	French, Tarrasch, Eliskases variation	174	48.3%	54.0%	0.12 MB
C07	French, Tarrasch, open variation	4684	47.7%	54.2%	2.87 MB
C08	French, Tarrasch, open, 4.ed ed	1694	51.7%	54.6%	1.06 MB
C09	French, Tarrasch, open variation, main line	1336	51.9%	56.7%	0.88 MB
C10	French, Fort Knox variation	783	40.7%	57.3%	0.50 MB
C10	French, Frere (Becker) variation	32	37.5%	62.5%	0.02 MB
C10	French, Marshall variation	2	50.0%	25.0%	0.00 MB
C10	French, Paulsen variation	1111	30.5%	60.3%	0.70 MB
C10	French, Rubinstein variation	3176	48.6%	55.8%	1.90 MB
C10	French, Rubinstein, Capablanca line	10	60.0%	50.0%	0.01 MB
C11	French defence	271	45.0%	54.2%	0.19 MB
C11	French, Burn variation	6182	45.6%	53.0%	3.60 MB
C11	French, Henneberger variation	15	33.3%	50.0%	0.01 MB
C11	French, Steinitz variation	1350	37.7%	54.7%	0.83 MB
C11	French, Steinitz, Boleslavsky variation	4525	36.2%	57.1%	2.50 MB
C11	French, Steinitz, Bradford attack	3	33.3%	50.0%	0.00 MB
C11	French, Steinitz, Gledhill attack	146	34.2%	52.7%	0.09 MB
C11	French, Swiss variation	60	45.0%	54.2%	0.04 MB
C12	French, MacCutcheon variation	179	41.9%	45.0%	0.13 MB
C12	French, MacCutcheon, Bernstein variation	31	25.8%	58.1%	0.02 MB
C12	French, MacCutcheon, Bogolyubov variation	1	100.0%	50.0%	0.00 MB
C12	French, MacCutcheon, Chigorin variation	97	42.3%	49.0%	0.06 MB
C12	French, MacCutcheon, Dr. Olland (Dutch) variation	137	41.6%	60.2%	0.09 MB
C12	French, MacCutcheon, Duras variation	4	25.0%	62.5%	0.00 MB
C12	French, MacCutcheon, Grigoriev variation	33	60.6%	54.5%	0.02 MB
C12	French, MacCutcheon, Janowski variation	161	37.3%	58.4%	0.09 MB
C12	French, MacCutcheon, Lasker variation	243	28.8%	60.9%	0.17 MB
C12	French, MacCutcheon, Lasker variation, 8...g6	434	36.6%	59.3%	0.26 MB
C12	French, MacCutcheon, Tartakower variation	2	0.0%	100.0%	0.00 MB
C12	French, MacCutcheon, advance variation	15	26.7%	20.0%	0.01 MB
C13	French, Albin-Alekhine-Chatard attack	389	31.1%	55.7%	0.23 MB
C13	French, Albin-Alekhine-Chatard attack, Breyer variation	102	39.2%	62.7%	0.07 MB
C13	French, Albin-Alekhine-Chatard attack, Maroczy variation	20	20.0%	65.0%	0.01 MB
C13	French, Albin-Alekhine-Chatard attack, Spielmann variation	69	37.7%	66.7%	0.04 MB
C13	French, Albin-Alekhine-Chatard attack, Teichmann variation	3	66.7%	66.7%	0.00 MB
C13	French, classical	35	45.7%	45.7%	0.03 MB
C13	French, classical, Anderssen variation	24	33.3%	41.7%	0.02 MB
C13	French, classical, Anderssen-Richter variation	16	25.0%	50.0%	0.01 MB
C13	French, classical, Frankfurt variation	8	37.5%	81.3%	0.01 MB
C13	French, classical, Tartakower variation	35	31.4%	55.7%	0.02 MB
C13	French, classical, Vistaneckis (Nimzovich) variation	13	7.7%	57.7%	0.01 MB
C14	French, classical variation	14	14.3%	42.9%	0.01 MB
C14	French, classical, Alapin variation	130	46.2%	53.1%	0.09 MB
C14	French, classical, Pollock variation	17	29.4%	44.1%	0.01 MB
C14	French, classical, Rubinstein variation	48	37.5%	62.5%	0.03 MB
C14	French, classical, Stahlberg variation	6	50.0%	58.3%	0.00 MB
C14	French, classical, Steinitz variation	897	36.6%	58.8%	0.52 MB
C14	French, classical, Tarrasch variation	24	25.0%	58.3%	0.02 MB
C15	French, Winawer (Nimzovich) variation	1313	41.2%	54.8%	0.83 MB
C15	French, Winawer, Alekhine (Maroczy) gambit	320	40.6%	55.9%	0.22 MB
C15	French, Winawer, Alekhine gambit	16	37.5%	56.3%	0.01 MB
C15	French, Winawer, Alekhine gambit, Kan variation	70	42.9%	52.9%	0.05 MB
C15	French, Winawer, Kondratiyev variation	18	55.6%	61.1%	0.01 MB
C15	French, Winawer, fingerslip variation	66	34.8%	46.2%	0.05 MB
C16	French, Winawer, Petrosian variation	290	32.4%	55.5%	0.19 MB
C16	French, Winawer, advance variation	1201	33.0%	56.8%	0.76 MB
C17	French, Winawer, advance variation	119	38.7%	58.0%	0.08 MB
C17	French, Winawer, advance, 5.a3	576	36.5%	63.5%	0.34 MB
C17	French, Winawer, advance, Bogolyubov variation	432	38.7%	52.2%	0.29 MB
C17	French, Winawer, advance, Rauzer variation	22	36.4%	63.6%	0.02 MB
C17	French, Winawer, advance, Russian variation	75	44.0%	51.3%	0.05 MB
C18	French, Winawer, advance variation	694	27.2%	62.6%	0.44 MB
C18	French, Winawer, classical variation	452	31.2%	58.7%	0.29 MB
C19	French, Winawer, advance, 6...Ne7	496	34.9%	60.8%	0.30 MB
C19	French, Winawer, advance, Smyslov variation	221	28.1%	64.7%	0.14 MB
C19	French, Winawer, advance, poisoned pawn variation	2969	33.8%	61.6%	1.83 MB
C19	French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation	3	0.0%	33.3%	0.00 MB
C19	French, Winawer, advance, poisoned pawn, Konstantinopolsky variation	865	32.4%	62.8%	0.45 MB
C19	French, Winawer, advance, positional main line	1292	30.9%	58.6%	0.81 MB
C20	Alapin's opening	62	33.9%	57.3%	0.04 MB
C20	KP, Indian opening	142	37.3%	47.5%	0.10 MB
C20	KP, King's head opening	2	50.0%	25.0%	0.00 MB
C20	KP, Lopez opening	20	40.0%	35.0%	0.01 MB
C20	KP, Mengarini's opening	22	40.9%	29.5%	0.02 MB
C20	KP, Napoleon's opening	44	38.6%	60.2%	0.03 MB
C20	KP, Patzer opening	138	27.5%	41.3%	0.09 MB
C20	King's pawn game	116	36.2%	50.9%	0.08 MB
C21	Centre game	363	39.7%	55.9%	0.24 MB
C21	Danish gambit	296	37.2%	49.3%	0.19 MB
C21	Danish gambit, Collijn defence	5	60.0%	50.0%	0.01 MB
C21	Danish gambit, Schlechter defence	17	23.5%	47.1%	0.01 MB
C21	Danish gambit, Soerensen defence	217	41.5%	51.2%	0.14 MB
C21	Halasz gambit	22	31.8%	43.2%	0.02 MB
C22	Centre game	457	37.2%	46.0%	0.29 MB
C22	Centre game, Berger variation	446	38.8%	51.9%	0.29 MB
C22	Centre game, Charousek variation	8	62.5%	56.3%	0.01 MB
C22	Centre game, Hall variation	29	37.9%	36.2%	0.02 MB
C22	Centre game, Paulsen attack	441	38.1%	53.5%	0.28 MB
C22	Centre game, l'Hermet variation	8	0.0%	37.5%	0.01 MB
C23	Bishop's opening	354	33.1%	53.5%	0.24 MB
C23	Bishop's opening, Calabrese counter-gambit, Jaenisch variation	3	0.0%	100.0%	0.00 MB
C23	Bishop's opening, Classical variation	113	40.7%	52.2%	0.08 MB
C23	Bishop's opening, Lewis gambit	4	0.0%	75.0%	0.00 MB
C23	Bishop's opening, Lisitsyn variation	1	0.0%	0.0%	0.00 MB
C23	Bishop's opening, Lopez gambit	2	0.0%	0.0%	0.00 MB
C23	Bishop's opening, MacDonnell double gambit	2	50.0%	25.0%	0.00 MB
C23	Bishop's opening, Philidor counter-attack	231	49.8%	50.0%	0.15 MB
C23	Bishop's opening, Philidor variation	9	44.4%	55.6%	0.01 MB
C23	Bishop's opening, Wing gambit	6	50.0%	41.7%	0.00 MB
C24	Bishop's opening, Berlin defence	1986	41.8%	52.8%	1.26 MB
C24	Bishop's opening, Ponziani gambit	20	30.0%	30.0%	0.01 MB
C24	Bishop's opening, Urusov gambit	132	45.5%	40.2%	0.09 MB
C24	Bishop's opening, Urusov gambit, Panov variation	4	50.0%	50.0%	0.00 MB
C25	Vienna gambit	178	35.4%	54.2%	0.11 MB
C25	Vienna game	449	35.9%	58.0%	0.31 MB
C25	Vienna game, Max Lange defence	47	44.7%	52.1%	0.03 MB
C25	Vienna, Paulsen variation	228	32.9%	56.8%	0.14 MB
C25	Vienna, Pierce gambit	27	25.9%	53.7%	0.02 MB
C25	Vienna, Steinitz gambit	2	50.0%	25.0%	0.00 MB
C25	Vienna, Steinitz gambit, Fraser-Minckwitz variation	1	0.0%	100.0%	0.00 MB
C26	Vienna game	518	41.3%	54.1%	0.36 MB
C26	Vienna, Falkbeer variation	123	35.8%	56.9%	0.09 MB
C26	Vienna, Mengarini variation	35	57.1%	48.6%	0.02 MB
C26	Vienna, Paulsen-Mieses variation	917	40.0%	52.6%	0.58 MB
C27	Boden-Kieseritsky gambit	45	35.6%	35.6%	0.03 MB
C27	Boden-Kieseritsky gambit, Lichtenhein defence	23	34.8%	52.2%	0.02 MB
C27	Vienna game	256	42.2%	52.7%	0.18 MB
C27	Vienna, Alekhine variation	38	39.5%	48.7%	0.03 MB
C27	Vienna, `Frankenstein-Dracula' variation	19	10.5%	78.9%	0.01 MB
C28	Vienna game	679	40.4%	51.8%	0.45 MB
C29	Vienna gambit	667	37.2%	49.6%	0.39 MB
C29	Vienna gambit, Bardeleben variation	18	27.8%	52.8%	0.01 MB
C29	Vienna gambit, Breyer variation	220	34.5%	51.8%	0.13 MB
C29	Vienna gambit, Kaufmann variation	12	41.7%	70.8%	0.01 MB
C29	Vienna gambit, Paulsen attack	51	43.1%	52.9%	0.04 MB
C29	Vienna gambit, Steinitz variation	42	40.5%	46.4%	0.03 MB
C29	Vienna gambit, Wurzburger trap	2	0.0%	100.0%	0.00 MB
C30	KGD, 2...Nf6	70	28.6%	61.4%	0.05 MB
C30	KGD, Keene's defence	94	28.7%	64.4%	0.06 MB
C30	KGD, Mafia defence	8	37.5%	68.8%	0.01 MB
C30	KGD, Norwalde variation	22	13.6%	79.5%	0.01 MB
C30	KGD, classical counter-gambit	10	50.0%	55.0%	0.01 MB
C30	KGD, classical variation	276	28.3%	54.3%	0.18 MB
C30	KGD, classical, 4.c3	217	31.8%	59.2%	0.14 MB
C30	KGD, classical, Hanham variation	6	50.0%	58.3%	0.01 MB
C30	KGD, classical, Heath variation	13	46.2%	53.8%	0.01 MB
C30	KGD, classical, Marshall attack	10	80.0%	50.0%	0.01 MB
C30	KGD, classical, Reti variation	9	55.6%	50.0%	0.01 MB
C30	KGD, classical, Soldatenkov variation	7	28.6%	28.6%	0.01 MB
C30	KGD, classical, Svenonius variation	3	66.7%	66.7%	0.00 MB
C30	King's gambit	350	37.1%	57.1%	0.22 MB
C31	KGD, Falkbeer counter-gambit	311	35.4%	53.1%	0.19 MB
C31	KGD, Falkbeer, 3...e4	51	47.1%	47.1%	0.04 MB
C31	KGD, Falkbeer, 4.d3	60	50.0%	63.3%	0.04 MB
C31	KGD, Falkbeer, Milner-Barry variation	2	0.0%	50.0%	0.00 MB
C31	KGD, Falkbeer, Morphy gambit	21	23.8%	50.0%	0.01 MB
C31	KGD, Falkbeer, Nimzovich variation	29	37.9%	53.4%	0.02 MB
C31	KGD, Falkbeer, Rubinstein variation	30	10.0%	58.3%	0.02 MB
C31	KGD, Falkbeer, Tartakower variation	70	58.6%	47.9%	0.05 MB
C31	KGD, Nimzovich counter-gambit	320	36.6%	51.7%	0.21 MB
C32	KGD, Falkbeer, 5.de	62	37.1%	50.8%	0.04 MB
C32	KGD, Falkbeer, Charousek gambit	13	61.5%	53.8%	0.01 MB
C32	KGD, Falkbeer, Keres variation	39	41.0%	53.8%	0.03 MB
C32	KGD, Falkbeer, Reti variation	28	35.7%	53.6%	0.02 MB
C32	KGD, Falkbeer, main line, 7...Bf5	11	27.3%	68.2%	0.01 MB
C33	KGA, Breyer gambit	7	42.9%	50.0%	0.01 MB
C33	KGA, Carrera (Basman) gambit	8	25.0%	50.0%	0.01 MB
C33	KGA, Keres (Mason-Steinitz) gambit	69	42.0%	45.7%	0.05 MB
C33	KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit	13	15.4%	53.8%	0.01 MB
C33	KGA, Villemson (Steinitz) gambit	20	30.0%	50.0%	0.02 MB
C33	KGA, bishop's gambit	392	35.7%	50.3%	0.24 MB
C33	KGA, bishop's gambit, Anderssen variation	6	33.3%	50.0%	0.01 MB
C33	KGA, bishop's gambit, Bledow variation	188	28.2%	42.8%	0.11 MB
C33	KGA, bishop's gambit, Boden defence	9	55.6%	50.0%	0.01 MB
C33	KGA, bishop's gambit, Bogolyubov variation	93	43.0%	50.5%	0.06 MB
C33	KGA, bishop's gambit, Bryan counter-gambit	2	0.0%	0.0%	0.00 MB
C33	KGA, bishop's gambit, Cozio (Morphy) defence	36	25.0%	34.7%	0.02 MB
C33	KGA, bishop's gambit, Gifford variation	3	33.3%	50.0%	0.00 MB
C33	KGA, bishop's gambit, Jaenisch variation	155	41.3%	47.1%	0.10 MB
C33	KGA, bishop's gambit, Lopez-Gianutio counter-gambit	10	20.0%	50.0%	0.01 MB
C33	KGA, bishop's gambit, Maurian defence	45	15.6%	41.1%	0.03 MB
C33	KGA, bishop's gambit, McDonnell attack	1	0.0%	100.0%	0.00 MB
C33	KGA, bishop's gambit, Morphy variation	69	34.8%	56.5%	0.04 MB
C33	KGA, bishop's gambit, Paulsen attack	23	39.1%	45.7%	0.02 MB
C33	KGA, bishop's gambit, Ruy Lopez defence	53	43.4%	51.9%	0.04 MB
C33	KGA, bishop's gambit, Steinitz defence	105	28.6%	50.5%	0.07 MB
C33	KGA, bishop's gambit, classical defence	6	0.0%	33.3%	0.00 MB
C33	King's gambit accepted	3	33.3%	16.7%	0.00 MB
C34	KGA, Becker defence	100	31.0%	50.5%	0.06 MB
C34	KGA, Bonsch-Osmolovsky variation	214	30.8%	53.7%	0.14 MB
C34	KGA, Fischer defence	335	31.9%	46.1%	0.20 MB
C34	KGA, Gianutio counter-gambit	2	100.0%	50.0%	0.00 MB
C34	KGA, Schallop defence	236	30.5%	53.8%	0.14 MB
C34	King's knight's gambit	46	28.3%	48.9%	0.03 MB
C35	KGA, Cunningham defence	274	28.5%	51.5%	0.16 MB
C35	KGA, Cunningham, Euwe defence	138	26.1%	47.1%	0.09 MB
C35	KGA, Cunningham, three pawns gambit	2	0.0%	100.0%	0.00 MB
C36	KGA, Abbazia defence (classical defence, modern defence[!])	148	40.5%	59.5%	0.10 MB
C36	KGA, Abbazia defence, Botvinnik variation	3	33.3%	50.0%	0.00 MB
C36	KGA, Abbazia defence, modern variation	792	39.5%	47.8%	0.49 MB
C37	KGA, Blachly gambit	38	34.2%	30.3%	0.03 MB
C37	KGA, Cochrane gambit	7	14.3%	21.4%	0.01 MB
C37	KGA, King's knight's gambit	37	59.5%	51.4%	0.02 MB
C37	KGA, Muzio gambit	18	33.3%	33.3%	0.01 MB
C37	KGA, Muzio gambit, Brentano defence	4	25.0%	62.5%	0.00 MB
C37	KGA, Muzio gambit, From defence	1	100.0%	50.0%	0.00 MB
C37	KGA, Quaade gambit	49	32.7%	38.8%	0.03 MB
C37	KGA, Rosentreter gambit	36	36.1%	43.1%	0.02 MB
C37	KGA, Salvio gambit	15	26.7%	46.7%	0.01 MB
C37	KGA, Salvio gambit, Anderssen counter-attack	5	0.0%	60.0%	0.00 MB
C37	KGA, Silberschmidt gambit	6	33.3%	33.3%	0.00 MB
C38	KGA, Hanstein gambit	13	23.1%	57.7%	0.01 MB
C38	KGA, Philidor gambit	29	20.7%	31.0%	0.02 MB
C38	KGA, Philidor gambit, Schultz variation	10	60.0%	30.0%	0.01 MB
C38	King's knight's gambit	62	33.9%	25.0%	0.04 MB
C39	KGA, Allgaier, Thorold variation	1	0.0%	0.0%	0.00 MB
C39	KGA, Allgaier, Walker attack	1	0.0%	0.0%	0.00 MB
C39	KGA, Kieseritsky, Berlin defence	92	33.7%	42.9%	0.05 MB
C39	KGA, Kieseritsky, Berlin defence, 6.Bc4	72	30.6%	41.7%	0.04 MB
C39	KGA, Kieseritsky, Brentano (Campbell) defence	3	33.3%	50.0%	0.00 MB
C39	KGA, Kieseritsky, Brentano defence	3	33.3%	50.0%	0.00 MB
C39	KGA, Kieseritsky, Brentano defence, Caro variation	3	100.0%	50.0%	0.00 MB
C39	KGA, Kieseritsky, Kolisch defence	155	43.9%	46.5%	0.10 MB
C39	KGA, Kieseritsky, Neumann defence	25	40.0%	60.0%	0.02 MB
C39	KGA, Kieseritsky, Paulsen defence	8	25.0%	37.5%	0.01 MB
C39	KGA, Kieseritsky, Rice gambit	19	21.1%	26.3%	0.01 MB
C39	KGA, Kieseritsky, Salvio (Rosenthal) defence	70	44.3%	40.7%	0.05 MB
C39	KGA, Kieseritsky, long whip (Stockwhip, classical) defence	34	44.1%	54.4%	0.02 MB
C39	King's knight's gambit	14	28.6%	50.0%	0.01 MB
C40	Greco defence	12	25.0%	45.8%	0.01 MB
C40	Gunderam defence	133	32.3%	64.3%	0.10 MB
C40	King's knight opening	2	0.0%	50.0%	0.00 MB
C40	Latvian counter-gambit	387	29.7%	59.3%	0.24 MB
C40	Latvian gambit, 3.Bc4	21	52.4%	50.0%	0.02 MB
C40	Latvian, Behting variation	3	100.0%	50.0%	0.00 MB
C40	Latvian, Fraser defence	61	31.1%	68.0%	0.04 MB
C40	Latvian, Nimzovich variation	2	0.0%	50.0%	0.00 MB
C40	Latvian, Polerio variation	25	32.0%	44.0%	0.02 MB
C40	QP counter-gambit (elephant gambit)	32	50.0%	65.6%	0.03 MB
C40	QP counter-gambit, Maroczy gambit	5	40.0%	80.0%	0.01 MB
C41	Philidor's defence	501	35.7%	59.0%	0.34 MB
C41	Philidor, Boden variation	10	50.0%	45.0%	0.01 MB
C41	Philidor, Hanham variation	63	33.3%	62.7%	0.05 MB
C41	Philidor, Hanham, Delmar variation	14	28.6%	42.9%	0.01 MB
C41	Philidor, Hanham, Kmoch variation	1	0.0%	100.0%	0.00 MB
C41	Philidor, Hanham, Krause variation	18	50.0%	47.2%	0.02 MB
C41	Philidor, Hanham, Schlechter variation	35	51.4%	65.7%	0.03 MB
C41	Philidor, Hanham, Steiner variation	24	37.5%	64.6%	0.02 MB
C41	Philidor, Improved Hanham variation	1465	39.0%	57.9%	0.94 MB
C41	Philidor, Larsen variation	66	25.8%	65.9%	0.05 MB
C41	Philidor, Lopez counter-gambit	3	0.0%	66.7%	0.00 MB
C41	Philidor, Nimzovich (Jaenisch) variation	27	33.3%	50.0%	0.02 MB
C41	Philidor, Nimzovich variation	67	43.3%	59.0%	0.05 MB
C41	Philidor, Nimzovich, Klein variation	15	60.0%	56.7%	0.01 MB
C41	Philidor, Nimzovich, Larobok variation	94	48.9%	38.3%	0.05 MB
C41	Philidor, Nimzovich, Locock variation	4	50.0%	50.0%	0.00 MB
C41	Philidor, Nimzovich, Rellstab variation	47	38.3%	66.0%	0.04 MB
C41	Philidor, Nimzovich, Sokolsky variation	14	78.6%	60.7%	0.01 MB
C41	Philidor, Nimzovich, Sozin variation	7	42.9%	50.0%	0.01 MB
C41	Philidor, Paulsen attack	2	50.0%	25.0%	0.00 MB
C41	Philidor, Philidor counter-gambit	30	16.7%	71.7%	0.02 MB
C41	Philidor, Philidor counter-gambit, Zukertort variation	12	50.0%	66.7%	0.01 MB
C41	Philidor, Philidor counter-gambit, del Rio attack	4	0.0%	75.0%	0.00 MB
C41	Philidor, Steinitz variation	2	0.0%	0.0%	0.00 MB
C41	Philidor, exchange variation	1117	37.8%	59.8%	0.69 MB
C42	Petrov three knights game	419	39.4%	58.1%	0.28 MB
C42	Petrov's defence	449	41.0%	53.2%	0.30 MB
C42	Petrov, Cochrane gambit	87	21.8%	36.2%	0.05 MB
C42	Petrov, Cozio (Lasker) attack	615	49.9%	52.0%	0.42 MB
C42	Petrov, Damiano variation	32	46.9%	54.7%	0.02 MB
C42	Petrov, French attack	9	66.7%	66.7%	0.01 MB
C42	Petrov, Italian variation	65	27.7%	49.2%	0.05 MB
C42	Petrov, Kaufmann attack	329	48.6%	52.6%	0.21 MB
C42	Petrov, Nimzovich attack	1881	45.9%	55.1%	1.12 MB
C42	Petrov, Paulsen attack	255	43.1%	51.0%	0.17 MB
C42	Petrov, classical attack	1300	49.6%	57.7%	0.80 MB
C42	Petrov, classical attack, Berger variation	25	60.0%	58.0%	0.02 MB
C42	Petrov, classical attack, Chigorin variation	727	42.8%	57.6%	0.45 MB
C42	Petrov, classical attack, Jaenisch variation	1902	46.6%	58.3%	1.17 MB
C42	Petrov, classical attack, Krause variation	9	44.4%	33.3%	0.01 MB
C42	Petrov, classical attack, Marshall variation	1280	44.5%	58.0%	0.79 MB
C42	Petrov, classical attack, Mason variation	187	46.5%	58.6%	0.13 MB
C42	Petrov, classical attack, Tarrasch variation	3	66.7%	66.7%	0.00 MB
C42	Petrov, classical attack, close variation	211	45.0%	59.0%	0.14 MB
C43	Petrov, Urusov gambit	14	14.3%	71.4%	0.01 MB
C43	Petrov, modern (Steinitz) attack	63	39.7%	56.3%	0.05 MB
C43	Petrov, modern attack, Bardeleben variation	9	44.4%	55.6%	0.01 MB
C43	Petrov, modern attack, Steinitz variation	2	50.0%	75.0%	0.00 MB
C43	Petrov, modern attack, Symmetrical variation	3419	45.2%	52.8%	1.99 MB
C43	Petrov, modern attack, Trifunovic variation	76	50.0%	51.3%	0.05 MB
C43	Petrov, modern attack, main line	264	48.5%	57.6%	0.17 MB
C44	Dresden opening	18	27.8%	41.7%	0.01 MB
C44	Inverted Hanham	52	34.6%	44.2%	0.04 MB
C44	Inverted Hungarian	46	45.7%	51.1%	0.03 MB
C44	King's pawn game	138	30.4%	50.0%	0.10 MB
C44	Konstantinopolsky opening	61	36.1%	60.7%	0.04 MB
C44	Ponziani counter-gambit	134	40.3%	60.4%	0.09 MB
C44	Ponziani counter-gambit, Cordel variation	1	0.0%	0.0%	0.00 MB
C44	Ponziani opening	372	30.9%	46.1%	0.24 MB
C44	Ponziani, Caro variation	276	43.8%	49.5%	0.19 MB
C44	Ponziani, Fraser defence	78	37.2%	66.0%	0.04 MB
C44	Ponziani, Jaenisch counter-attack	2513	44.7%	52.2%	1.55 MB
C44	Ponziani, Leonhardt variation	146	36.3%	50.3%	0.10 MB
C44	Ponziani, Reti variation	56	39.3%	60.7%	0.04 MB
C44	Ponziani, Romanishin variation	24	33.3%	50.0%	0.02 MB
C44	Ponziani, Steinitz variation	548	41.8%	46.1%	0.35 MB
C44	Scotch gambit	142	40.8%	56.3%	0.09 MB
C44	Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack	6	66.7%	33.3%	0.00 MB
C44	Scotch gambit, Benima defence	69	39.1%	57.2%	0.05 MB
C44	Scotch gambit, Cochrane-Shumov defence	10	40.0%	70.0%	0.01 MB
C44	Scotch gambit, Dubois-Reti defence	410	42.7%	53.8%	0.27 MB
C44	Scotch gambit, Hanneken variation	1	0.0%	100.0%	0.00 MB
C44	Scotch opening	20	50.0%	50.0%	0.01 MB
C44	Scotch, Goering gambit	264	42.0%	54.0%	0.17 MB
C44	Scotch, Goering gambit, Bardeleben variation	15	40.0%	46.7%	0.01 MB
C44	Scotch, Lolli variation	24	33.3%	58.3%	0.02 MB
C44	Scotch, Relfsson gambit ('MacLopez')	10	40.0%	50.0%	0.01 MB
C44	Tayler opening	4	25.0%	37.5%	0.00 MB
C45	Scotch game	3243	43.4%	54.1%	1.99 MB
C45	Scotch, Blackburne attack	30	43.3%	51.7%	0.02 MB
C45	Scotch, Blumenfeld attack	16	37.5%	31.3%	0.01 MB
C45	Scotch, Ghulam Kassim variation	8	75.0%	50.0%	0.01 MB
C45	Scotch, Horwitz attack	42	35.7%	56.0%	0.03 MB
C45	Scotch, Meitner variation	48	54.2%	50.0%	0.03 MB
C45	Scotch, Mieses variation	1900	43.2%	53.6%	1.08 MB
C45	Scotch, Paulsen attack	20	45.0%	52.5%	0.01 MB
C45	Scotch, Potter variation	775	40.6%	52.3%	0.47 MB
C45	Scotch, Pulling counter-attack	5	20.0%	70.0%	0.00 MB
C45	Scotch, Romanishin variation	83	39.8%	56.0%	0.06 MB
C45	Scotch, Schmidt variation	922	51.4%	48.5%	0.58 MB
C45	Scotch, Steinitz variation	48	33.3%	58.3%	0.04 MB
C45	Scotch, Tartakower variation	28	25.0%	44.6%	0.02 MB
C46	Four knights game	1020	42.1%	51.0%	0.65 MB
C46	Four knights, Gunsberg variation	163	43.6%	49.4%	0.11 MB
C46	Four knights, Italian variation	249	44.2%	47.4%	0.18 MB
C46	Four knights, Schultze-Mueller gambit	5	0.0%	20.0%	0.00 MB
C46	Three knights game	373	31.1%	59.8%	0.23 MB
C46	Three knights, Schlechter variation	46	39.1%	54.3%	0.03 MB
C46	Three knights, Steinitz variation	254	27.2%	56.9%	0.16 MB
C46	Three knights, Steinitz, Rosenthal variation	29	48.3%	48.3%	0.02 MB
C46	Three knights, Winawer defence (Gothic defence)	1	0.0%	100.0%	0.00 MB
C47	Four knights, Belgrade gambit	183	42.6%	52.5%	0.12 MB
C47	Four knights, Scotch variation	34	35.3%	52.9%	0.03 MB
C47	Four knights, Scotch, 4...exd4	628	53.5%	52.7%	0.41 MB
C47	Four knights, Scotch, Krause variation	68	39.7%	64.0%	0.05 MB
C48	Four knights, Bardeleben variation	8	50.0%	50.0%	0.01 MB
C48	Four knights, Marshall variation	10	20.0%	50.0%	0.01 MB
C48	Four knights, Ranken variation	33	45.5%	62.1%	0.02 MB
C48	Four knights, Rubinstein counter-gambit	1427	42.3%	52.0%	0.91 MB
C48	Four knights, Rubinstein counter-gambit, 5.Be2	10	40.0%	40.0%	0.01 MB
C48	Four knights, Rubinstein counter-gambit, Bogolyubov variation	19	52.6%	47.4%	0.02 MB
C48	Four knights, Rubinstein counter-gambit, Henneberger variation	103	50.5%	50.5%	0.08 MB
C48	Four knights, Rubinstein counter-gambit, exchange variation	233	67.4%	52.6%	0.15 MB
C48	Four knights, Spanish variation	357	49.9%	55.5%	0.25 MB
C48	Four knights, Spanish, classical defence	260	45.4%	49.6%	0.17 MB
C48	Four knights, Spielmann variation	8	62.5%	43.8%	0.01 MB
C49	Four knights	100	51.0%	47.5%	0.07 MB
C49	Four knights, Gunsberg counter-attack	5	60.0%	50.0%	0.00 MB
C49	Four knights, Janowski variation	25	40.0%	68.0%	0.02 MB
C49	Four knights, Nimzovich (Paulsen) variation	96	54.2%	57.3%	0.08 MB
C49	Four knights, Svenonius variation	5	60.0%	50.0%	0.00 MB
C49	Four knights, double Ruy Lopez	266	42.5%	56.6%	0.19 MB
C49	Four knights, symmetrical variation	227	41.9%	54.8%	0.15 MB
C49	Four knights, symmetrical, Blake variation	4	75.0%	62.5%	0.00 MB
C49	Four knights, symmetrical, Capablanca variation	24	54.2%	60.4%	0.02 MB
C49	Four knights, symmetrical, Maroczy system	92	43.5%	56.5%	0.07 MB
C49	Four knights, symmetrical, Metger unpin	387	37.7%	51.2%	0.27 MB
C49	Four knights, symmetrical, Pillsbury variation	68	45.6%	44.9%	0.05 MB
C49	Four knights, symmetrical, Tarrasch variation	16	50.0%	50.0%	0.01 MB
C50	Giuoco Pianissimo	3763	41.0%	53.0%	2.30 MB
C50	Giuoco Pianissimo, Canal variation	221	43.0%	52.3%	0.15 MB
C50	Giuoco Pianissimo, Italian four knights variation	634	41.0%	51.7%	0.43 MB
C50	Giuoco Piano	2456	42.2%	52.3%	1.50 MB
C50	Giuoco Piano, four knights variation	72	38.9%	54.2%	0.06 MB
C50	Hungarian defence	244	41.0%	50.0%	0.17 MB
C50	King's pawn game	285	35.4%	60.5%	0.19 MB
C50	Rousseau gambit	3	33.3%	50.0%	0.00 MB
C51	Evans counter-gambit	36	30.6%	56.9%	0.03 MB
C51	Evans gambit	20	40.0%	65.0%	0.02 MB
C51	Evans gambit declined	62	38.7%	53.2%	0.04 MB
C51	Evans gambit declined, 5.a4	211	40.8%	47.4%	0.14 MB
C51	Evans gambit declined, Lange variation	2	0.0%	0.0%	0.00 MB
C51	Evans gambit declined, Showalter variation	53	45.3%	58.5%	0.04 MB
C51	Evans gambit, 5...Be7	77	36.4%	61.0%	0.06 MB
C51	Evans gambit, Cordel variation	111	47.7%	46.4%	0.08 MB
C51	Evans gambit, Fraser attack	14	28.6%	57.1%	0.01 MB
C51	Evans gambit, Goering attack	4	50.0%	75.0%	0.00 MB
C51	Evans gambit, Morphy attack	37	40.5%	58.1%	0.03 MB
C51	Evans gambit, Paulsen variation	20	25.0%	67.5%	0.01 MB
C51	Evans gambit, Stone-Ware variation	285	31.9%	54.9%	0.18 MB
C51	Evans gambit, Ulvestad variation	2	0.0%	100.0%	0.00 MB
C51	Evans gambit, normal variation	60	30.0%	46.7%	0.04 MB
C52	Evans gambit	440	39.5%	49.1%	0.26 MB
C52	Evans gambit, Alapin-Steinitz variation	13	53.8%	34.6%	0.01 MB
C52	Evans gambit, Lasker defence	14	35.7%	25.0%	0.01 MB
C52	Evans gambit, Leonhardt variation	6	33.3%	50.0%	0.00 MB
C52	Evans gambit, Levenfish variation	6	16.7%	25.0%	0.01 MB
C52	Evans gambit, Richardson attack	19	36.8%	28.9%	0.02 MB
C52	Evans gambit, Sanders-Alapin variation	6	33.3%	50.0%	0.01 MB
C52	Evans gambit, Tartakower attack	101	45.5%	47.5%	0.07 MB
C52	Evans gambit, Waller attack	9	22.2%	88.9%	0.01 MB
C52	Evans gambit, compromised defence	54	25.9%	70.4%	0.03 MB
C52	Evans gambit, compromised defence, Paulsen variation	17	23.5%	58.8%	0.01 MB
C52	Evans gambit, compromised defence, Potter variation	1	0.0%	100.0%	0.00 MB
C53	Giuoco Piano	3748	40.1%	52.5%	2.29 MB
C53	Giuoco Piano, Anderssen variation	47	55.3%	46.8%	0.04 MB
C53	Giuoco Piano, Bird's attack	209	33.5%	50.7%	0.14 MB
C53	Giuoco Piano, Eisinger variation	2	0.0%	100.0%	0.00 MB
C53	Giuoco Piano, LaBourdonnais variation	65	49.2%	58.5%	0.04 MB
C53	Giuoco Piano, Mestel variation	12	16.7%	66.7%	0.01 MB
C53	Giuoco Piano, centre-holding variation	90	42.2%	61.1%	0.07 MB
C53	Giuoco Piano, close variation	147	37.4%	59.5%	0.10 MB
C54	Giuoco Piano	251	53.4%	50.2%	0.16 MB
C54	Giuoco Piano, Moeller (Therkatz) attack	44	54.5%	47.7%	0.03 MB
C54	Giuoco Piano, Moeller, bayonet attack	1	0.0%	100.0%	0.00 MB
C54	Giuoco Piano, Therkatz-Herzog variation	1	0.0%	0.0%	0.00 MB
C55	Giuoco piano	2	0.0%	50.0%	0.00 MB
C55	Two knights defence	134	37.3%	51.5%	0.10 MB
C55	Two knights defence (Modern bishop's opening)	1968	39.5%	55.9%	1.27 MB
C55	Two knights defence, Keidanz variation	2	100.0%	50.0%	0.00 MB
C55	Two knights defence, Perreux variation	46	56.5%	50.0%	0.03 MB
C55	Two knights, Max Lange attack	44	31.8%	61.4%	0.03 MB
C55	Two knights, Max Lange attack, Krause variation	4	50.0%	75.0%	0.00 MB
C55	Two knights, Max Lange attack, Loman defence	4	25.0%	37.5%	0.00 MB
C55	Two knights, Max Lange attack, Marshall variation	9	22.2%	66.7%	0.01 MB
C55	Two knights, Max Lange attack, Rubinstein variation	1	100.0%	50.0%	0.00 MB
C55	Two knights, Max Lange attack, Schlechter variation	35	62.9%	51.4%	0.02 MB
C55	Two knights, Max Lange attack, Steinitz variation	17	41.2%	67.6%	0.01 MB
C56	Two knights defence	161	47.8%	49.4%	0.10 MB
C56	Two knights defence, Canal variation	5	40.0%	40.0%	0.00 MB
C57	Two knights defence	20	25.0%	42.5%	0.01 MB
C57	Two knights defence, Fegatello attack	90	23.3%	51.7%	0.05 MB
C57	Two knights defence, Fegatello attack, Leonhardt variation	9	22.2%	55.6%	0.01 MB
C57	Two knights defence, Fegatello attack, Polerio defence	4	0.0%	100.0%	0.00 MB
C57	Two knights defence, Fritz variation	103	39.8%	50.0%	0.07 MB
C57	Two knights defence, Fritz, Gruber variation	16	37.5%	43.8%	0.01 MB
C57	Two knights defence, Lolli attack	21	33.3%	59.5%	0.01 MB
C57	Two knights defence, Pincus variation	10	40.0%	30.0%	0.01 MB
C57	Two knights defence, Ulvestad variation	114	51.8%	46.9%	0.08 MB
C57	Two knights defence, Wilkes Barre (Traxler) variation	135	34.1%	59.3%	0.09 MB
C58	Two knights defence	392	37.5%	57.0%	0.24 MB
C58	Two knights defence, Blackburne variation	4	25.0%	62.5%	0.00 MB
C58	Two knights defence, Bogolyubov variation	96	32.3%	43.2%	0.07 MB
C58	Two knights defence, Colman variation	84	33.3%	46.4%	0.05 MB
C58	Two knights defence, Kieseritsky variation	45	31.1%	57.8%	0.03 MB
C58	Two knights defence, Paoli variation	10	30.0%	75.0%	0.01 MB
C58	Two knights defence, Yankovich variation	19	31.6%	26.3%	0.01 MB
C59	Two knights defence	212	39.2%	48.8%	0.13 MB
C59	Two knights defence, Goering variation	8	12.5%	31.3%	0.01 MB
C59	Two knights defence, Steinitz variation	417	33.1%	48.0%	0.25 MB
C60	Ruy Lopez (Spanish opening)	84	32.1%	57.7%	0.06 MB
C60	Ruy Lopez, Cozio defence	589	40.2%	53.6%	0.38 MB
C60	Ruy Lopez, Cozio defence, Paulsen variation	74	41.9%	65.5%	0.05 MB
C60	Ruy Lopez, Lucena defence	12	41.7%	45.8%	0.01 MB
C60	Ruy Lopez, Nuernberg variation	4	0.0%	50.0%	0.00 MB
C60	Ruy Lopez, Vinogradov variation	2	50.0%	75.0%	0.00 MB
C60	Ruy Lopez, fianchetto (Smyslov/Barnes) defence	636	42.3%	53.5%	0.41 MB
C61	Ruy Lopez, Bird's defence	638	37.6%	56.6%	0.40 MB
C61	Ruy Lopez, Bird's defence, Paulsen variation	9	44.4%	66.7%	0.01 MB
C62	Ruy Lopez, old Steinitz defence	489	36.8%	55.6%	0.34 MB
C62	Ruy Lopez, old Steinitz defence, Nimzovich attack	5	20.0%	50.0%	0.01 MB
C62	Ruy Lopez, old Steinitz defence, semi-Duras variation	22	45.5%	54.5%	0.02 MB
C63	Ruy Lopez, Schliemann defence	585	42.7%	57.6%	0.38 MB
C63	Ruy Lopez, Schliemann defence, Berger variation	560	45.0%	57.0%	0.35 MB
C64	Ruy Lopez, Cordel gambit	99	40.4%	55.6%	0.07 MB
C64	Ruy Lopez, classical (Cordel) defence	388	42.5%	53.7%	0.26 MB
C64	Ruy Lopez, classical defence, 4.c3	416	43.5%	57.8%	0.28 MB
C64	Ruy Lopez, classical defence, Benelux variation	497	40.8%	55.8%	0.31 MB
C64	Ruy Lopez, classical defence, Boden variation	14	57.1%	57.1%	0.01 MB
C64	Ruy Lopez, classical defence, Charousek variation	14	35.7%	67.9%	0.01 MB
C64	Ruy Lopez, classical defence, Zaitsev variation	4	100.0%	50.0%	0.00 MB
C65	Ruy Lopez, Berlin defence	6307	41.0%	52.1%	3.90 MB
C65	Ruy Lopez, Berlin defence, 4.O-O	256	42.2%	59.0%	0.18 MB
C65	Ruy Lopez, Berlin defence, Anderssen variation	2	50.0%	75.0%	0.00 MB
C65	Ruy Lopez, Berlin defence, Beverwijk variation	663	39.5%	57.5%	0.44 MB
C65	Ruy Lopez, Berlin defence, Duras variation	29	37.9%	46.6%	0.02 MB
C65	Ruy Lopez, Berlin defence, Kaufmann variation	42	50.0%	53.6%	0.03 MB
C65	Ruy Lopez, Berlin defence, Mortimer variation	29	51.7%	46.6%	0.02 MB
C65	Ruy Lopez, Berlin defence, Nyholm attack	117	53.8%	53.4%	0.08 MB
C66	Ruy Lopez, Berlin defence, 4.O-O, d6	195	46.7%	59.2%	0.14 MB
C66	Ruy Lopez, Berlin defence, hedgehog variation	142	52.8%	57.4%	0.10 MB
C66	Ruy Lopez, closed Berlin defence, Bernstein variation	24	45.8%	60.4%	0.02 MB
C66	Ruy Lopez, closed Berlin defence, Chigorin variation	4	0.0%	50.0%	0.01 MB
C66	Ruy Lopez, closed Berlin defence, Showalter variation	74	45.9%	56.8%	0.06 MB
C66	Ruy Lopez, closed Berlin defence, Wolf variation	61	57.4%	56.6%	0.04 MB
C67	Ruy Lopez, Berlin defence, Cordel variation	95	37.9%	60.0%	0.06 MB
C67	Ruy Lopez, Berlin defence, Minckwitz variation	56	48.2%	58.0%	0.04 MB
C67	Ruy Lopez, Berlin defence, Pillsbury variation	1	0.0%	0.0%	0.00 MB
C67	Ruy Lopez, Berlin defence, Rosenthal variation	58	41.4%	56.9%	0.04 MB
C67	Ruy Lopez, Berlin defence, Trifunovic variation	5	20.0%	90.0%	0.00 MB
C67	Ruy Lopez, Berlin defence, Winawer attack	33	33.3%	68.2%	0.03 MB
C67	Ruy Lopez, Berlin defence, Zukertort variation	28	60.7%	55.4%	0.02 MB
C67	Ruy Lopez, Berlin defence, open variation	5413	48.6%	53.7%	3.18 MB
C67	Ruy Lopez, open Berlin defence, 5...Be7	115	40.0%	53.0%	0.08 MB
C67	Ruy Lopez, open Berlin defence, Showalter variation	26	34.6%	48.1%	0.02 MB
C67	Ruy Lopez, open Berlin defence, l'Hermet variation	150	61.3%	51.3%	0.10 MB
C68	Ruy Lopez, exchange variation	125	39.2%	53.2%	0.09 MB
C68	Ruy Lopez, exchange, Alekhine variation	36	47.2%	43.1%	0.03 MB
C68	Ruy Lopez, exchange, Keres variation	209	48.8%	49.8%	0.14 MB
C68	Ruy Lopez, exchange, Romanovsky variation	50	32.0%	52.0%	0.04 MB
C69	Ruy Lopez, exchange variation, 5.O-O	1253	42.5%	53.0%	0.77 MB
C69	Ruy Lopez, exchange variation, Alapin gambit	398	44.2%	51.0%	0.24 MB
C69	Ruy Lopez, exchange, Bronstein variation	865	38.3%	50.7%	0.54 MB
C69	Ruy Lopez, exchange, Gligoric variation	979	44.6%	54.7%	0.60 MB
C70	Ruy Lopez	199	37.2%	53.8%	0.14 MB
C70	Ruy Lopez, Alapin's defence deferred	15	33.3%	76.7%	0.01 MB
C70	Ruy Lopez, Caro variation	114	43.0%	57.5%	0.09 MB
C70	Ruy Lopez, Classical defence deferred	125	39.2%	58.0%	0.09 MB
C70	Ruy Lopez, Cozio defence deferred	582	42.3%	54.8%	0.38 MB
C70	Ruy Lopez, Graz variation	12	66.7%	58.3%	0.01 MB
C70	Ruy Lopez, Schliemann defence deferred	43	37.2%	60.5%	0.03 MB
C70	Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation	197	38.6%	62.4%	0.13 MB
C70	Ruy Lopez, fianchetto defence deferred	122	48.4%	57.0%	0.08 MB
C71	Ruy Lopez, modern Steinitz defence	189	41.8%	55.3%	0.14 MB
C71	Ruy Lopez, modern Steinitz defence, Duras (Keres) variation	251	39.0%	56.6%	0.17 MB
C71	Ruy Lopez, modern Steinitz defence, Three knights variation	17	41.2%	50.0%	0.01 MB
C72	Ruy Lopez, modern Steinitz defence, 5.O-O	976	41.4%	57.5%	0.64 MB
C73	Ruy Lopez, modern Steinitz defence, Alapin variation	326	34.4%	50.3%	0.21 MB
C73	Ruy Lopez, modern Steinitz defence, Richter variation	271	47.2%	50.9%	0.19 MB
C74	Ruy Lopez, Siesta, Kopayev variation	202	32.7%	55.9%	0.12 MB
C74	Ruy Lopez, modern Steinitz defence	190	31.1%	61.8%	0.14 MB
C74	Ruy Lopez, modern Steinitz defence, siesta variation	130	36.2%	49.6%	0.09 MB
C75	Ruy Lopez, modern Steinitz defence	262	43.1%	52.9%	0.18 MB
C75	Ruy Lopez, modern Steinitz defence, Rubinstein variation	195	29.2%	59.2%	0.14 MB
C76	Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation	605	37.5%	53.8%	0.40 MB
C77	Ruy Lopez, Anderssen variation	2196	43.5%	52.2%	1.38 MB
C77	Ruy Lopez, Morphy defence	321	43.0%	54.8%	0.23 MB
C77	Ruy Lopez, Morphy defence, Duras variation	82	39.0%	58.5%	0.06 MB
C77	Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)	110	45.5%	44.5%	0.08 MB
C77	Ruy Lopez, Wormald (Alapin) attack	606	42.7%	53.1%	0.41 MB
C77	Ruy Lopez, Wormald attack, Gruenfeld variation	4	50.0%	75.0%	0.00 MB
C77	Ruy Lopez, four knights (Tarrasch) variation	260	45.0%	55.6%	0.18 MB
C78	Ruy Lopez, ...b5 & ...d6	74	36.5%	60.1%	0.05 MB
C78	Ruy Lopez, 5.O-O	1503	46.8%	54.6%	0.93 MB
C78	Ruy Lopez, Archangelsk (counterthrust) variation	2046	43.1%	55.2%	1.30 MB
C78	Ruy Lopez, Moeller defence	803	43.0%	54.6%	0.51 MB
C78	Ruy Lopez, Rabinovich variation	1	0.0%	0.0%	0.00 MB
C78	Ruy Lopez, Wing attack	19	42.1%	52.6%	0.02 MB
C79	Ruy Lopez, Steinitz defence deferred (Russian defence)	500	39.4%	55.1%	0.33 MB
C79	Ruy Lopez, Steinitz defence deferred, Lipnitsky variation	18	72.2%	58.3%	0.02 MB
C79	Ruy Lopez, Steinitz defence deferred, Rubinstein variation	33	51.5%	56.1%	0.02 MB
C80	Ruy Lopez, open (Tarrasch) defence	75	44.0%	62.0%	0.06 MB
C80	Ruy Lopez, open, 6.d4	59	39.0%	44.9%	0.04 MB
C80	Ruy Lopez, open, 7.Bb3	512	41.4%	53.3%	0.30 MB
C80	Ruy Lopez, open, 8...Be6	1384	37.9%	43.9%	0.81 MB
C80	Ruy Lopez, open, Berger variation	3	66.7%	33.3%	0.00 MB
C80	Ruy Lopez, open, Bernstein variation	1105	49.8%	62.7%	0.66 MB
C80	Ruy Lopez, open, Bernstein variation, Karpov gambit	27	44.4%	44.4%	0.02 MB
C80	Ruy Lopez, open, Friess attack	11	18.2%	54.5%	0.01 MB
C80	Ruy Lopez, open, Harksen gambit	1	0.0%	100.0%	0.00 MB
C80	Ruy Lopez, open, Riga variation	11	45.5%	68.2%	0.01 MB
C80	Ruy Lopez, open, Schlechter defence	19	31.6%	26.3%	0.01 MB
C80	Ruy Lopez, open, Tartakower variation	13	61.5%	46.2%	0.01 MB
C80	Ruy Lopez, open, Zukertort variation	3	33.3%	50.0%	0.00 MB
C81	Ruy Lopez, open, Howell attack	287	49.5%	54.0%	0.19 MB
C81	Ruy Lopez, open, Howell attack, Adam variation	2	0.0%	0.0%	0.00 MB
C81	Ruy Lopez, open, Howell attack, Ekstroem variation	12	33.3%	50.0%	0.01 MB
C82	Ruy Lopez, open, 9.c3	9	33.3%	72.2%	0.01 MB
C82	Ruy Lopez, open, Berlin variation	28	28.6%	67.9%	0.02 MB
C82	Ruy Lopez, open, Dilworth variation	195	41.0%	60.0%	0.13 MB
C82	Ruy Lopez, open, Italian variation	116	51.7%	62.9%	0.07 MB
C82	Ruy Lopez, open, Motzko attack	106	48.1%	59.0%	0.07 MB
C82	Ruy Lopez, open, Motzko attack, Nenarokov variation	19	42.1%	73.7%	0.02 MB
C82	Ruy Lopez, open, St. Petersburg variation	231	43.3%	64.9%	0.15 MB
C83	Ruy Lopez, open, 9...Be7, 10.Re1	48	39.6%	53.1%	0.04 MB
C83	Ruy Lopez, open, Breslau variation	3	66.7%	66.7%	0.00 MB
C83	Ruy Lopez, open, Malkin variation	17	58.8%	58.8%	0.01 MB
C83	Ruy Lopez, open, classical defence	261	48.7%	59.6%	0.18 MB
C84	Ruy Lopez, closed defence	2194	42.5%	52.2%	1.40 MB
C84	Ruy Lopez, closed, Basque gambit (North Spanish variation)	2	50.0%	25.0%	0.00 MB
C84	Ruy Lopez, closed, centre attack	209	51.2%	47.6%	0.14 MB
C85	Ruy Lopez, Exchange variation doubly deferred (DERLD)	1685	39.8%	49.7%	1.10 MB
C86	Ruy Lopez, Worrall attack	35	45.7%	60.0%	0.03 MB
C86	Ruy Lopez, Worrall attack, sharp line	339	41.3%	53.1%	0.22 MB
C86	Ruy Lopez, Worrall attack, solid line	173	39.9%	51.2%	0.12 MB
C87	Ruy Lopez, closed, Averbach variation	481	41.0%	60.0%	0.32 MB
C88	Ruy Lopez, Trajkovic counter-attack	672	42.1%	52.2%	0.44 MB
C88	Ruy Lopez, closed	1404	42.0%	53.3%	0.95 MB
C88	Ruy Lopez, closed, 7...O-O	4003	42.0%	52.9%	2.54 MB
C88	Ruy Lopez, closed, 7...d6, 8.d4	24	33.3%	25.0%	0.02 MB
C88	Ruy Lopez, closed, 8.c3	38	42.1%	57.9%	0.03 MB
C88	Ruy Lopez, closed, Balla variation	46	37.0%	55.4%	0.03 MB
C88	Ruy Lopez, closed, anti-Marshall 8.a4	2188	41.0%	53.6%	1.38 MB
C89	Ruy Lopez, Marshall counter-attack	663	52.8%	54.3%	0.42 MB
C89	Ruy Lopez, Marshall counter-attack, 11...c6	252	46.4%	55.0%	0.16 MB
C89	Ruy Lopez, Marshall, Herman Steiner variation	3	33.3%	83.3%	0.00 MB
C89	Ruy Lopez, Marshall, Kevitz variation	3	100.0%	50.0%	0.00 MB
C89	Ruy Lopez, Marshall, main line, 12.d2d4	240	40.8%	62.5%	0.16 MB
C89	Ruy Lopez, Marshall, main line, 14...Qh3	542	51.7%	51.5%	0.36 MB
C89	Ruy Lopez, Marshall, main line, Spassky variation	1	0.0%	0.0%	0.00 MB
C90	Ruy Lopez, closed (with ...d6)	1278	38.0%	51.9%	0.86 MB
C90	Ruy Lopez, closed, Lutikov variation	47	51.1%	53.2%	0.04 MB
C90	Ruy Lopez, closed, Pilnik variation	919	36.1%	52.2%	0.63 MB
C90	Ruy Lopez, closed, Suetin variation	95	37.9%	57.9%	0.07 MB
C91	Ruy Lopez, closed, 9.d4	1347	38.9%	58.4%	0.92 MB
C91	Ruy Lopez, closed, Bogolyubov variation	4139	43.9%	53.7%	2.68 MB
C92	Ruy Lopez, closed, 9.h3	457	43.1%	53.5%	0.31 MB
C92	Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)	2151	39.3%	57.1%	1.36 MB
C92	Ruy Lopez, closed, Keres (9...a5) variation	21	52.4%	50.0%	0.02 MB
C92	Ruy Lopez, closed, Kholmov variation	142	32.4%	64.1%	0.09 MB
C92	Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation	345	42.9%	63.8%	0.23 MB
C93	Ruy Lopez, closed, Smyslov defence	271	40.6%	59.0%	0.18 MB
C94	Ruy Lopez, closed, Breyer defence	113	38.1%	58.0%	0.08 MB
C95	Ruy Lopez, closed, Breyer, 10.d4	1	0.0%	0.0%	0.00 MB
C95	Ruy Lopez, closed, Breyer, Borisenko variation	815	39.6%	56.7%	0.55 MB
C95	Ruy Lopez, closed, Breyer, Gligoric variation	67	44.8%	58.2%	0.05 MB
C95	Ruy Lopez, closed, Breyer, Simagin variation	25	40.0%	56.0%	0.02 MB
C96	Ruy Lopez, closed (10...c5)	762	33.5%	66.3%	0.51 MB
C96	Ruy Lopez, closed (8...Na5)	40	50.0%	62.5%	0.03 MB
C96	Ruy Lopez, closed, Borisenko defence	45	40.0%	57.8%	0.03 MB
C96	Ruy Lopez, closed, Keres (...Nd7) defence	245	37.6%	66.1%	0.17 MB
C96	Ruy Lopez, closed, Rossolimo defence	3	0.0%	33.3%	0.00 MB
C97	Ruy Lopez, closed, Chigorin defence	876	32.0%	63.4%	0.59 MB
C98	Ruy Lopez, closed, Chigorin, 12...Nc6	152	30.9%	63.5%	0.11 MB
C99	Ruy Lopez, closed, Chigorin, 12...c5d4	923	40.3%	62.9%	0.57 MB
D00	Blackmar gambit	256	37.5%	40.6%	0.16 MB
D00	Blackmar-Diemer gambit	69	43.5%	43.5%	0.04 MB
D00	Blackmar-Diemer, Euwe defence	41	26.8%	47.6%	0.03 MB
D00	Blackmar-Diemer, Lemberg counter-gambit	20	20.0%	60.0%	0.01 MB
D00	Levitsky attack (Queen's bishop attack)	2985	36.1%	50.7%	1.87 MB
D00	Queen's pawn game	1379	38.4%	50.7%	0.89 MB
D00	Queen's pawn, Anti-Veresov	6	50.0%	58.3%	0.01 MB
D00	Queen's pawn, Chigorin variation	1032	34.5%	51.9%	0.67 MB
D00	Queen's pawn, Mason variation	1761	38.9%	53.1%	1.12 MB
D00	Queen's pawn, Mason variation, Steinitz counter-gambit	879	40.7%	51.6%	0.57 MB
D00	Queen's pawn, stonewall attack	81	32.1%	42.0%	0.06 MB
D01	Richter-Veresov attack	925	32.9%	47.9%	0.59 MB
D01	Richter-Veresov attack, Richter variation	27	25.9%	57.4%	0.02 MB
D01	Richter-Veresov attack, Veresov variation	42	40.5%	48.8%	0.03 MB
D02	Queen's bishop game	2433	41.6%	53.3%	1.58 MB
D02	Queen's pawn game	7515	41.4%	53.2%	4.73 MB
D02	Queen's pawn game, Chigorin variation	772	40.0%	56.4%	0.52 MB
D02	Queen's pawn game, Krause variation	742	41.9%	55.2%	0.49 MB
D03	Torre attack (Tartakower variation)	941	38.9%	50.8%	0.62 MB
D04	Queen's pawn game	1411	39.4%	51.6%	0.93 MB
D05	Colle system	371	49.1%	52.3%	0.25 MB
D05	Queen's pawn game	1138	39.9%	51.9%	0.74 MB
D05	Queen's pawn game, Rubinstein (Colle-Zukertort) variation	528	40.0%	54.3%	0.34 MB
D05	Queen's pawn game, Zukertort variation	79	46.8%	57.6%	0.06 MB
D06	QGD, Grau (Sahovic) defence	338	33.4%	59.9%	0.22 MB
D06	QGD, Marshall defence	374	41.7%	55.6%	0.25 MB
D06	QGD, symmetrical (Austrian) defence	181	45.9%	60.5%	0.12 MB
D07	QGD, Chigorin defence	1299	36.3%	57.6%	0.81 MB
D07	QGD, Chigorin defence, Janowski variation	172	37.2%	63.4%	0.11 MB
D08	QGD, Albin counter-gambit	648	38.1%	55.3%	0.40 MB
D08	QGD, Albin counter-gambit, Alapin variation	131	48.9%	55.7%	0.08 MB
D08	QGD, Albin counter-gambit, Balogh variation	23	30.4%	76.1%	0.02 MB
D08	QGD, Albin counter-gambit, Janowski variation	21	23.8%	73.8%	0.02 MB
D08	QGD, Albin counter-gambit, Krenosz variation	18	38.9%	58.3%	0.01 MB
D08	QGD, Albin counter-gambit, Lasker trap	6	16.7%	58.3%	0.01 MB
D09	QGD, Albin counter-gambit, 5.g3	468	42.5%	56.3%	0.29 MB
D10	QGD Slav defence	5537	40.9%	54.3%	3.45 MB
D10	QGD Slav defence, Alekhine variation	338	38.2%	57.5%	0.21 MB
D10	QGD Slav defence, exchange variation	2311	45.2%	55.6%	1.44 MB
D10	QGD Slav, Winawer counter-gambit	300	34.3%	55.8%	0.20 MB
D11	QGD Slav, 3.Nf3	4315	41.8%	55.4%	2.70 MB
D11	QGD Slav, 4.e3	6748	43.8%	55.5%	4.09 MB
D11	QGD Slav, Breyer variation	300	42.3%	57.8%	0.21 MB
D12	QGD Slav, 4.e3 Bf5	4497	40.6%	54.7%	2.77 MB
D12	QGD Slav, Amsterdam variation	22	54.5%	45.5%	0.02 MB
D12	QGD Slav, exchange variation	110	37.3%	48.6%	0.08 MB
D13	QGD Slav, exchange variation	1106	49.0%	55.2%	0.71 MB
D14	QGD Slav, exchange variation, 6.Bf4 Bf5	866	52.7%	52.4%	0.54 MB
D14	QGD Slav, exchange, Trifunovic variation	273	51.6%	52.2%	0.17 MB
D15	QGD Slav accepted	157	40.8%	51.0%	0.10 MB
D15	QGD Slav, 4.Nc3	5800	41.0%	55.4%	3.54 MB
D15	QGD Slav, 5.e3 (Alekhine variation)	227	33.0%	56.6%	0.15 MB
D15	QGD Slav, Schlechter variation	476	45.4%	59.9%	0.33 MB
D15	QGD Slav, Slav gambit	79	29.1%	67.7%	0.05 MB
D15	QGD Slav, Suechting variation	216	33.3%	59.7%	0.15 MB
D15	QGD Slav, Tolush-Geller gambit	170	29.4%	41.8%	0.10 MB
D16	QGD Slav accepted, Alapin variation	266	38.7%	64.5%	0.17 MB
D16	QGD Slav, Smyslov variation	119	37.8%	60.9%	0.08 MB
D16	QGD Slav, Soultanbeieff variation	586	51.4%	52.1%	0.38 MB
D16	QGD Slav, Steiner variation	320	38.1%	61.9%	0.21 MB
D17	QGD Slav, Carlsbad variation	581	40.1%	61.4%	0.35 MB
D17	QGD Slav, Czech defence	525	48.6%	55.7%	0.34 MB
D17	QGD Slav, Krause attack	992	41.0%	58.4%	0.63 MB
D17	QGD Slav, Wiesbaden variation	801	42.3%	57.5%	0.46 MB
D18	QGD Slav, Dutch variation	468	41.2%	58.7%	0.29 MB
D18	QGD Slav, Dutch, Lasker variation	4	25.0%	87.5%	0.00 MB
D19	QGD Slav, Dutch variation	1843	41.5%	56.9%	1.15 MB
D19	QGD Slav, Dutch variation, main line	329	44.4%	58.4%	0.22 MB
D19	QGD Slav, Dutch, Saemisch variation	3	33.3%	50.0%	0.00 MB
D20	QGA, 3.e4	3987	41.0%	56.6%	2.35 MB
D20	QGA, Linares variation	118	36.4%	58.9%	0.07 MB
D20	Queen's gambit accepted	1326	46.2%	55.0%	0.85 MB
D21	QGA, 3.Nf3	499	42.7%	57.6%	0.32 MB
D21	QGA, Alekhine defense, Borisenko-Furman variation	43	34.9%	45.3%	0.03 MB
D21	QGA, Ericson variation	6	0.0%	33.3%	0.01 MB
D22	QGA, Alekhine defence	545	41.8%	57.6%	0.35 MB
D22	QGA, Alekhine defence, Alatortsev variation	14	57.1%	42.9%	0.01 MB
D22	QGA, Haberditz variation	233	55.4%	56.0%	0.15 MB
D23	QGA, Mannheim variation	527	42.5%	53.9%	0.35 MB
D23	Queen's gambit accepted	77	49.4%	51.9%	0.06 MB
D24	QGA, 4.Nc3	366	38.5%	52.3%	0.24 MB
D24	QGA, Bogolyubov variation	233	47.6%	54.7%	0.14 MB
D25	QGA, 4.e3	233	39.9%	57.3%	0.15 MB
D25	QGA, Flohr variation	129	27.1%	65.5%	0.08 MB
D25	QGA, Janowsky-Larsen variation	661	41.5%	58.5%	0.43 MB
D25	QGA, Smyslov variation	117	53.0%	60.7%	0.08 MB
D26	QGA, 4...e6	381	44.9%	54.2%	0.26 MB
D26	QGA, classical variation	954	51.7%	53.8%	0.63 MB
D26	QGA, classical variation, 6.O-O	223	49.8%	57.6%	0.16 MB
D26	QGA, classical, Furman variation	5	60.0%	30.0%	0.00 MB
D26	QGA, classical, Steinitz variation	178	49.4%	64.0%	0.12 MB
D27	QGA, classical, 6...a6	5068	52.9%	55.0%	3.15 MB
D27	QGA, classical, Geller variation	94	53.2%	57.4%	0.07 MB
D27	QGA, classical, Rubinstein variation	1701	48.7%	56.7%	1.08 MB
D28	QGA, classical, 7...b5	337	51.3%	55.0%	0.23 MB
D28	QGA, classical, 7.Qe2	69	50.7%	61.6%	0.05 MB
D28	QGA, classical, Flohr variation	1	0.0%	0.0%	0.00 MB
D29	QGA, classical, 8...Bb7	380	42.4%	47.2%	0.25 MB
D29	QGA, classical, Smyslov variation	47	53.2%	43.6%	0.04 MB
D30	QGD	1211	47.5%	51.4%	0.73 MB
D30	QGD Slav	641	46.2%	54.9%	0.43 MB
D30	QGD Slav, Semmering variation	48	35.4%	49.0%	0.04 MB
D30	QGD, Capablanca variation	45	33.3%	58.9%	0.03 MB
D30	QGD, Capablanca-Duras variation	500	44.4%	53.0%	0.33 MB
D30	QGD, Hastings variation	899	47.7%	52.8%	0.55 MB
D30	QGD, Stonewall variation	4	50.0%	75.0%	0.00 MB
D30	QGD, Vienna variation	1283	53.2%	52.2%	0.78 MB
D30	Queen's gambit declined	8109	45.0%	55.3%	5.10 MB
D31	QGD, 3.Nc3	1328	39.8%	54.6%	0.85 MB
D31	QGD, Alapin variation	17	23.5%	64.7%	0.01 MB
D31	QGD, Charousek (Petrosian) variation	2328	46.4%	54.4%	1.44 MB
D31	QGD, Janowski variation	378	42.6%	54.6%	0.26 MB
D31	QGD, semi-Slav	1579	40.2%	53.8%	0.99 MB
D31	QGD, semi-Slav, Abrahams variation	188	36.2%	43.6%	0.12 MB
D31	QGD, semi-Slav, Junge variation	12	33.3%	33.3%	0.01 MB
D31	QGD, semi-Slav, Koomen variation	9	55.6%	38.9%	0.01 MB
D31	QGD, semi-Slav, Marshall gambit	1427	42.8%	54.9%	0.83 MB
D31	QGD, semi-Slav, Noteboom variation	393	38.4%	50.8%	0.24 MB
D32	QGD, Tarrasch defence	633	45.8%	53.9%	0.42 MB
D32	QGD, Tarrasch defence, 4.cd ed	48	31.3%	44.8%	0.03 MB
D32	QGD, Tarrasch defence, Marshall gambit	14	42.9%	57.1%	0.01 MB
D32	QGD, Tarrasch defence, Tarrasch gambit	19	57.9%	44.7%	0.01 MB
D32	QGD, Tarrasch, von Hennig-Schara gambit	133	45.1%	63.2%	0.10 MB
D33	QGD, Tarrasch, Folkestone (Swedish) variation	250	48.4%	56.2%	0.17 MB
D33	QGD, Tarrasch, Prague variation	227	42.7%	54.0%	0.15 MB
D33	QGD, Tarrasch, Schlechter-Rubinstein system	61	34.4%	56.6%	0.04 MB
D33	QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation	2	50.0%	25.0%	0.00 MB
D33	QGD, Tarrasch, Wagner variation	59	54.2%	55.9%	0.05 MB
D34	QGD, Tarrasch, Bogolyubov variation	2	50.0%	25.0%	0.00 MB
D34	QGD, Tarrasch, Prague variation, 7...Be7	226	44.7%	55.1%	0.16 MB
D34	QGD, Tarrasch, Prague variation, 9.Bg5	629	46.7%	58.8%	0.40 MB
D34	QGD, Tarrasch, Prague variation, Normal position	827	51.1%	56.3%	0.53 MB
D34	QGD, Tarrasch, Reti variation	44	54.5%	65.9%	0.03 MB
D35	QGD, 3...Nf6	148	37.8%	50.0%	0.10 MB
D35	QGD, Harrwitz attack	285	49.8%	55.8%	0.19 MB
D35	QGD, exchange variation	475	41.9%	56.1%	0.32 MB
D35	QGD, exchange, Saemisch variation	420	48.3%	53.7%	0.28 MB
D35	QGD, exchange, positional line	1414	41.7%	54.3%	0.91 MB
D35	QGD, exchange, positional line, 5...c6	1135	44.1%	56.3%	0.76 MB
D36	QGD, exchange, positional line, 6.Qc2	533	43.3%	55.3%	0.35 MB
D37	QGD, 4.Nf3	7869	47.2%	53.6%	4.66 MB
D37	QGD, classical variation (5.Bf4)	5685	46.7%	55.0%	3.45 MB
D38	QGD, Ragozin variation	6445	46.9%	53.2%	3.85 MB
D39	QGD, Ragozin, Vienna variation	1920	49.6%	51.1%	1.09 MB
D40	QGD, Semi-Tarrasch defence	483	42.4%	54.6%	0.34 MB
D40	QGD, Semi-Tarrasch defence, Pillsbury variation	97	50.5%	58.2%	0.07 MB
D40	QGD, Semi-Tarrasch, Levenfish variation	5	40.0%	60.0%	0.00 MB
D40	QGD, Semi-Tarrasch, symmetrical variation	27	48.1%	53.7%	0.02 MB
D41	QGD, Semi-Tarrasch with e3	370	47.0%	56.8%	0.25 MB
D41	QGD, Semi-Tarrasch, 5.cd	873	50.3%	56.8%	0.54 MB
D41	QGD, Semi-Tarrasch, Kmoch variation	15	60.0%	43.3%	0.01 MB
D41	QGD, Semi-Tarrasch, San Sebastian variation	28	39.3%	76.8%	0.02 MB
D42	QGD, Semi-Tarrasch, 7.Bd3	449	47.0%	54.7%	0.30 MB
D43	QGD semi-Slav	10361	42.7%	53.1%	6.05 MB
D43	QGD semi-Slav, Hastings variation	5	20.0%	90.0%	0.01 MB
D44	QGD semi-Slav, 5.Bg5 dc	271	48.3%	49.3%	0.18 MB
D44	QGD semi-Slav, Botvinnik system (anti-Meran)	109	34.9%	51.4%	0.07 MB
D44	QGD semi-Slav, Ekstrom variation	26	46.2%	38.5%	0.02 MB
D44	QGD semi-Slav, anti-Meran gambit	981	34.6%	58.4%	0.51 MB
D44	QGD semi-Slav, anti-Meran, Alatortsev system	1	100.0%	50.0%	0.00 MB
D44	QGD semi-Slav, anti-Meran, Lilienthal variation	206	35.0%	65.5%	0.11 MB
D44	QGD semi-Slav, anti-Meran, Szabo variation	31	22.6%	37.1%	0.02 MB
D45	QGD semi-Slav, 5...Nd7	843	40.7%	51.4%	0.55 MB
D45	QGD semi-Slav, 5.e3	528	38.3%	57.0%	0.35 MB
D45	QGD semi-Slav, Rubinstein (anti-Meran) system	21	33.3%	45.2%	0.01 MB
D45	QGD semi-Slav, Stoltz variation	13847	44.1%	53.3%	8.31 MB
D45	QGD semi-Slav, accelerated Meran (Alekhine variation)	3205	43.8%	54.2%	1.95 MB
D45	QGD semi-Slav, stonewall defence	14	42.9%	50.0%	0.01 MB
D46	QGD semi-Slav, 6.Bd3	50	40.0%	66.0%	0.04 MB
D46	QGD semi-Slav, Bogolyubov variation	197	45.2%	56.6%	0.15 MB
D46	QGD semi-Slav, Chigorin defence	482	45.9%	55.1%	0.33 MB
D46	QGD semi-Slav, Romih variation	197	36.0%	63.7%	0.13 MB
D47	QGD semi-Slav, 7.Bc4	89	33.7%	58.4%	0.06 MB
D47	QGD semi-Slav, Meran variation	1660	49.8%	53.5%	1.06 MB
D47	QGD semi-Slav, Meran, Wade variation	7364	40.0%	53.4%	4.34 MB
D47	QGD semi-Slav, neo-Meran (Lundin variation)	367	51.0%	55.2%	0.25 MB
D48	QGD semi-Slav, Meran	24	4.2%	43.8%	0.02 MB
D48	QGD semi-Slav, Meran, 8...a6	1560	50.1%	49.1%	0.97 MB
D48	QGD semi-Slav, Meran, Pirc variation	16	50.0%	68.8%	0.01 MB
D48	QGD semi-Slav, Meran, Reynolds' variation	840	39.2%	56.3%	0.50 MB
D48	QGD semi-Slav, Meran, old main line	128	35.9%	53.1%	0.08 MB
D49	QGD semi-Slav, Meran, Blumenfeld variation	213	44.6%	53.8%	0.13 MB
D49	QGD semi-Slav, Meran, Rabinovich variation	78	30.8%	47.4%	0.05 MB
D49	QGD semi-Slav, Meran, Rellstab attack	17	35.3%	58.8%	0.01 MB
D49	QGD semi-Slav, Meran, Sozin variation	171	43.9%	47.1%	0.09 MB
D49	QGD semi-Slav, Meran, Stahlberg variation	80	41.3%	45.6%	0.05 MB
D50	QGD, 4.Bg5	512	39.5%	58.8%	0.33 MB
D50	QGD, Been-Koomen variation	36	50.0%	47.2%	0.03 MB
D50	QGD, Canal (Venice) variation	17	47.1%	52.9%	0.01 MB
D50	QGD, Semi-Tarrasch	78	52.6%	51.9%	0.05 MB
D50	QGD, Semi-Tarrasch, Krause variation	2	100.0%	50.0%	0.00 MB
D50	QGD, Semi-Tarrasch, Primitive Pillsbury variation	15	40.0%	53.3%	0.01 MB
D51	QGD	55	49.1%	57.3%	0.04 MB
D51	QGD, 4.Bg5 Nbd7	121	43.0%	53.7%	0.09 MB
D51	QGD, 5...c6	244	49.6%	51.0%	0.17 MB
D51	QGD, Alekhine variation	8	12.5%	56.3%	0.01 MB
D51	QGD, Capablanca anti-Cambridge Springs variation	51	45.1%	59.8%	0.04 MB
D51	QGD, Manhattan variation	26	50.0%	55.8%	0.02 MB
D51	QGD, Rochlin variation	13	46.2%	46.2%	0.01 MB
D52	QGD	254	39.8%	54.9%	0.17 MB
D52	QGD, Cambridge Springs defence	51	47.1%	49.0%	0.04 MB
D52	QGD, Cambridge Springs defence, 7.cd	95	30.5%	55.3%	0.07 MB
D52	QGD, Cambridge Springs defence, Argentine variation	26	34.6%	44.2%	0.02 MB
D52	QGD, Cambridge Springs defence, Bogoljubow variation	550	50.9%	55.6%	0.38 MB
D52	QGD, Cambridge Springs defence, Capablanca variation	39	35.9%	59.0%	0.03 MB
D52	QGD, Cambridge Springs defence, Rubinstein variation	234	40.2%	56.0%	0.16 MB
D52	QGD, Cambridge Springs defence, Yugoslav variation	558	40.0%	56.7%	0.35 MB
D53	QGD, 4.Bg5 Be7	1337	45.9%	55.2%	0.86 MB
D53	QGD, 4.Bg5 Be7, 5.e3 O-O	106	44.3%	52.4%	0.07 MB
D53	QGD, Lasker variation	6	33.3%	66.7%	0.01 MB
D54	QGD, Anti-neo-orthodox variation	151	45.7%	56.0%	0.10 MB
D55	QGD, 6.Nf3	209	38.8%	57.2%	0.15 MB
D55	QGD, Neo-orthodox variation	12	50.0%	58.3%	0.01 MB
D55	QGD, Neo-orthodox variation, 7.Bh4	231	51.9%	57.6%	0.16 MB
D55	QGD, Neo-orthodox variation, 7.Bxf6	452	48.2%	52.4%	0.30 MB
D55	QGD, Petrosian variation	413	54.0%	53.1%	0.26 MB
D55	QGD, Pillsbury attack	2	50.0%	75.0%	0.00 MB
D56	QGD, Lasker defence	610	50.3%	53.4%	0.39 MB
D56	QGD, Lasker defence, Teichmann variation	135	53.3%	49.6%	0.09 MB
D57	QGD, Lasker defence, Bernstein variation	38	57.9%	55.3%	0.03 MB
D57	QGD, Lasker defence, main line	169	52.7%	55.3%	0.11 MB
D58	QGD, Tartakower (Makagonov-Bondarevsky) system	5474	47.1%	52.1%	3.46 MB
D59	QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5	284	50.4%	46.0%	0.20 MB
D59	QGD, Tartakower variation	151	48.3%	46.0%	0.11 MB
D60	QGD, Orthodox defence	134	35.8%	53.7%	0.10 MB
D60	QGD, Orthodox defence, Botvinnik variation	125	41.6%	52.8%	0.10 MB
D60	QGD, Orthodox defence, Rauzer variation	120	47.5%	54.6%	0.08 MB
D61	QGD, Orthodox defence, Rubinstein variation	457	46.6%	53.3%	0.31 MB
D62	QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)	267	51.3%	54.5%	0.17 MB
D63	QGD, Orthodox defence	129	46.5%	60.5%	0.09 MB
D63	QGD, Orthodox defence, 7.Rc1	308	43.8%	56.3%	0.21 MB
D63	QGD, Orthodox defence, Capablanca variation	5	40.0%	60.0%	0.00 MB
D63	QGD, Orthodox defence, Pillsbury attack	37	54.1%	62.2%	0.02 MB
D63	QGD, Orthodox defence, Swiss (Henneberger) variation	150	44.7%	57.0%	0.11 MB
D63	QGD, Orthodox defence, Swiss, Karlsbad variation	379	44.9%	54.6%	0.26 MB
D64	QGD, Orthodox defence, Rubinstein attack (with Rc1)	135	51.1%	55.2%	0.10 MB
D64	QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation	36	33.3%	61.1%	0.03 MB
D64	QGD, Orthodox defence, Rubinstein attack, Karlsbad variation	29	41.4%	41.4%	0.02 MB
D64	QGD, Orthodox defence, Rubinstein attack, Wolf variation	13	46.2%	46.2%	0.01 MB
D65	QGD, Orthodox defence, Rubinstein attack, main line	36	50.0%	58.3%	0.03 MB
D66	QGD, Orthodox defence, Bd3 line	357	48.2%	56.9%	0.24 MB
D66	QGD, Orthodox defence, Bd3 line, fianchetto variation	29	37.9%	63.8%	0.02 MB
D67	QGD, Orthodox defence, Bd3 line	19	57.9%	44.7%	0.02 MB
D67	QGD, Orthodox defence, Bd3 line, 11.O-O	68	35.3%	66.2%	0.05 MB
D67	QGD, Orthodox defence, Bd3 line, Alekhine variation	67	55.2%	60.4%	0.05 MB
D68	QGD, Orthodox defence, classical variation	84	50.0%	57.1%	0.06 MB
D68	QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)	3	66.7%	33.3%	0.00 MB
D68	QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)	51	56.9%	57.8%	0.04 MB
D69	QGD, Orthodox defence, classical, 13.de	17	52.9%	55.9%	0.01 MB
D70	Neo-Gruenfeld (Kemeri) defence	286	39.2%	53.1%	0.18 MB
D70	Neo-Gruenfeld defence	391	38.1%	54.9%	0.24 MB
D71	Neo-Gruenfeld, 5.cd	419	45.8%	56.6%	0.27 MB
D72	Neo-Gruenfeld, 5.cd, main line	315	35.2%	61.1%	0.20 MB
D73	Neo-Gruenfeld, 5.Nf3	1124	51.2%	55.8%	0.72 MB
D74	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O	334	47.9%	56.6%	0.23 MB
D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3	261	47.1%	58.0%	0.17 MB
D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc	39	38.5%	65.4%	0.03 MB
D76	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6	670	46.9%	57.2%	0.44 MB
D77	Neo-Gruenfeld, 6.O-O	970	48.0%	55.1%	0.63 MB
D78	Neo-Gruenfeld, 6.O-O c6	1134	45.1%	52.5%	0.73 MB
D79	Neo-Gruenfeld, 6.O-O, main line	734	51.0%	53.7%	0.48 MB
D80	Gruenfeld defence	1636	46.5%	53.7%	0.95 MB
D80	Gruenfeld, Lundin variation	1	0.0%	0.0%	0.00 MB
D80	Gruenfeld, Stockholm variation	1103	44.8%	53.8%	0.68 MB
D81	Gruenfeld, Russian variation	783	42.0%	58.8%	0.50 MB
D82	Gruenfeld, 4.Bf4	799	43.8%	53.8%	0.50 MB
D83	Gruenfeld, Gruenfeld gambit	118	46.6%	55.5%	0.08 MB
D83	Gruenfeld, Gruenfeld gambit, Botvinnik variation	38	60.5%	59.2%	0.03 MB
D83	Gruenfeld, Gruenfeld gambit, Capablanca variation	545	42.4%	57.2%	0.34 MB
D84	Gruenfeld, Gruenfeld gambit accepted	173	48.6%	58.4%	0.11 MB
D85	Gruenfeld, exchange variation	4386	48.5%	55.9%	2.58 MB
D85	Gruenfeld, modern exchange variation	4179	47.9%	56.3%	2.38 MB
D86	Gruenfeld, exchange, Larsen variation	11	36.4%	54.5%	0.01 MB
D86	Gruenfeld, exchange, Simagin's improved variation	220	39.1%	56.4%	0.15 MB
D86	Gruenfeld, exchange, Simagin's lesser variation	94	43.6%	60.1%	0.06 MB
D86	Gruenfeld, exchange, classical variation	1444	46.7%	55.9%	0.89 MB
D87	Gruenfeld, exchange, Seville variation	93	53.8%	61.3%	0.06 MB
D87	Gruenfeld, exchange, Spassky variation	692	44.7%	56.3%	0.44 MB
D88	Gruenfeld, Spassky variation, main line, 10...cd, 11.cd	291	42.3%	61.0%	0.19 MB
D89	Gruenfeld, Spassky variation, main line, 13.Bd3	75	40.0%	48.0%	0.05 MB
D89	Gruenfeld, exchange, Sokolsky variation	12	41.7%	45.8%	0.01 MB
D90	Gruenfeld, Flohr variation	495	41.0%	52.6%	0.31 MB
D90	Gruenfeld, Schlechter variation	96	36.5%	53.6%	0.07 MB
D90	Gruenfeld, Three knights variation	1033	49.4%	53.7%	0.62 MB
D91	Gruenfeld, 5.Bg5	1128	40.9%	48.5%	0.75 MB
D92	Gruenfeld, 5.Bf4	999	46.1%	56.0%	0.63 MB
D93	Gruenfeld with Bf4 e3	416	49.3%	55.6%	0.28 MB
D94	Gruenfeld with e3 Bd3	25	40.0%	48.0%	0.02 MB
D94	Gruenfeld, 5.e3	525	44.4%	56.3%	0.35 MB
D94	Gruenfeld, Flohr defence	23	52.2%	60.9%	0.02 MB
D94	Gruenfeld, Makogonov variation	143	40.6%	51.0%	0.10 MB
D94	Gruenfeld, Opovcensky variation	237	44.3%	52.1%	0.16 MB
D94	Gruenfeld, Smyslov defence	229	48.0%	55.0%	0.16 MB
D95	Gruenfeld with e3 & Qb3	48	39.6%	59.4%	0.04 MB
D95	Gruenfeld, Botvinnik variation	146	44.5%	50.3%	0.11 MB
D96	Gruenfeld, Russian variation	533	41.8%	51.9%	0.35 MB
D97	Gruenfeld, Russian variation with e4	97	32.0%	61.3%	0.07 MB
D97	Gruenfeld, Russian, Alekhine (Hungarian) variation	2157	46.2%	51.7%	1.33 MB
D97	Gruenfeld, Russian, Byrne (Simagin) variation	214	40.7%	63.3%	0.14 MB
D97	Gruenfeld, Russian, Levenfish variation	29	34.5%	62.1%	0.02 MB
D97	Gruenfeld, Russian, Prins variation	539	46.0%	56.4%	0.35 MB
D97	Gruenfeld, Russian, Szabo (Boleslavsky) variation	278	45.0%	58.1%	0.18 MB
D98	Gruenfeld, Russian, Keres variation	22	50.0%	47.7%	0.02 MB
D98	Gruenfeld, Russian, Smyslov variation	396	40.2%	59.7%	0.25 MB
D99	Gruenfeld defence, Smyslov, Yugoslav variation	27	22.2%	51.9%	0.02 MB
D99	Gruenfeld defence, Smyslov, main line	261	42.1%	59.0%	0.17 MB
E00	Catalan opening	4887	42.4%	55.1%	3.01 MB
E00	Neo-Indian (Seirawan) attack	294	32.0%	50.0%	0.21 MB
E00	Queen's pawn game	652	38.7%	56.4%	0.45 MB
E01	Catalan, closed	958	48.5%	54.6%	0.63 MB
E02	Catalan, open, 5.Qa4	243	46.5%	58.6%	0.17 MB
E03	Catalan, open, 5.Qa4 Nbd7, 6.Qxc4	174	49.4%	46.6%	0.11 MB
E03	Catalan, open, Alekhine variation	59	40.7%	49.2%	0.04 MB
E04	Catalan, open, 5.Nf3	6136	45.2%	53.8%	3.61 MB
E05	Catalan, open, classical line	247	52.6%	57.9%	0.18 MB
E06	Catalan, closed, 5.Nf3	4298	50.9%	53.8%	2.66 MB
E07	Catalan, closed, 6...Nbd7	147	43.5%	52.4%	0.10 MB
E07	Catalan, closed, Botvinnik variation	149	40.9%	50.7%	0.10 MB
E08	Catalan, closed, 7.Qc2	151	35.8%	61.6%	0.11 MB
E08	Catalan, closed, Qc2 & b3	378	41.3%	52.1%	0.25 MB
E08	Catalan, closed, Spassky gambit	13	23.1%	50.0%	0.01 MB
E08	Catalan, closed, Zagoryansky variation	10	60.0%	50.0%	0.01 MB
E09	Catalan, closed, Sokolsky variation	5	20.0%	50.0%	0.00 MB
E09	Catalan, closed, main line	333	37.2%	59.8%	0.23 MB
E10	Blumenfeld counter-gambit	423	42.3%	55.7%	0.27 MB
E10	Blumenfeld counter-gambit accepted	170	40.0%	55.9%	0.11 MB
E10	Blumenfeld counter-gambit, Dus-Chotimursky variation	278	36.0%	56.8%	0.18 MB
E10	Blumenfeld counter-gambit, Spielmann variation	184	34.8%	58.2%	0.11 MB
E10	Doery defence	36	38.9%	58.3%	0.03 MB
E10	Dzindzikhashvili defence	242	43.0%	52.5%	0.17 MB
E10	Queen's pawn game	6172	45.1%	55.2%	3.86 MB
E11	Bogo-Indian defence	2337	41.4%	55.2%	1.47 MB
E11	Bogo-Indian defence, Gruenfeld variation	3005	40.8%	56.3%	1.88 MB
E11	Bogo-Indian defence, Monticelli trap	23	43.5%	39.1%	0.02 MB
E11	Bogo-Indian defence, Nimzovich variation	2025	41.7%	57.5%	1.30 MB
E12	Queen's Indian defence	831	41.5%	53.5%	0.56 MB
E12	Queen's Indian, 4.Nc3	6037	40.9%	53.2%	3.70 MB
E12	Queen's Indian, 4.Nc3, Botvinnik variation	46	28.3%	48.9%	0.03 MB
E12	Queen's Indian, Miles variation	1915	43.4%	53.4%	1.25 MB
E12	Queen's Indian, Petrosian system	8841	43.9%	54.4%	5.30 MB
E13	Queen's Indian, 4.Nc3, main line	324	36.1%	53.2%	0.21 MB
E14	Queen's Indian, 4.e3	2260	40.4%	52.7%	1.44 MB
E14	Queen's Indian, Averbakh variation	6	50.0%	41.7%	0.01 MB
E15	Queen's Indian, 4.g3	3747	48.4%	55.2%	2.27 MB
E15	Queen's Indian, 4.g3 Bb7	415	42.2%	53.9%	0.28 MB
E15	Queen's Indian, Buerger variation	67	35.8%	62.7%	0.04 MB
E15	Queen's Indian, Nimzovich variation (exaggerated fianchetto)	17853	42.0%	56.5%	10.81 MB
E15	Queen's Indian, Rubinstein variation	197	35.0%	60.2%	0.13 MB
E16	Queen's Indian, Capablanca variation	669	43.8%	57.2%	0.44 MB
E16	Queen's Indian, Riumin variation	317	38.5%	59.0%	0.22 MB
E16	Queen's Indian, Yates variation	536	42.7%	57.7%	0.37 MB
E17	Queen's Indian, 5.Bg2 Be7	58	41.4%	46.6%	0.04 MB
E17	Queen's Indian, Euwe variation	105	53.3%	54.3%	0.07 MB
E17	Queen's Indian, Opovcensky variation	951	40.6%	55.5%	0.60 MB
E17	Queen's Indian, anti-Queen's Indian system	547	42.6%	54.2%	0.35 MB
E17	Queen's Indian, old main line, 6.O-O	1345	43.9%	57.9%	0.84 MB
E18	Queen's Indian, old main line, 7.Nc3	2166	44.0%	57.0%	1.32 MB
E19	Queen's Indian, old main line, 9.Qxc3	1596	47.4%	58.1%	1.03 MB
E20	Nimzo-Indian defence	296	47.0%	53.2%	0.21 MB
E20	Nimzo-Indian, Kmoch variation	1374	38.1%	53.7%	0.80 MB
E20	Nimzo-Indian, Mikenas attack	8	50.0%	62.5%	0.01 MB
E20	Nimzo-Indian, Romanishin-Kasparov (Steiner) system	718	45.4%	54.9%	0.48 MB
E21	Nimzo-Indian, three knights variation	3776	42.5%	54.5%	2.33 MB
E21	Nimzo-Indian, three knights, Euwe variation	8	62.5%	56.3%	0.01 MB
E21	Nimzo-Indian, three knights, Korchnoi variation	10	30.0%	35.0%	0.01 MB
E22	Nimzo-Indian, Spielmann variation	717	39.1%	53.3%	0.46 MB
E23	Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc6	123	44.7%	46.7%	0.08 MB
E23	Nimzo-Indian, Spielmann, Karlsbad variation	47	40.4%	45.7%	0.03 MB
E23	Nimzo-Indian, Spielmann, San Remo variation	29	41.4%	51.7%	0.02 MB
E23	Nimzo-Indian, Spielmann, Staahlberg variation	2	0.0%	100.0%	0.00 MB
E24	Nimzo-Indian, Saemisch variation	498	38.6%	53.0%	0.31 MB
E24	Nimzo-Indian, Saemisch, Botvinnik variation	113	39.8%	43.8%	0.07 MB
E25	Nimzo-Indian, Saemisch variation	223	42.2%	55.2%	0.14 MB
E25	Nimzo-Indian, Saemisch, Keres variation	358	47.8%	54.6%	0.23 MB
E25	Nimzo-Indian, Saemisch, Romanovsky variation	161	59.0%	52.5%	0.11 MB
E26	Nimzo-Indian, Saemisch variation	289	37.0%	55.9%	0.18 MB
E26	Nimzo-Indian, Saemisch, O'Kelly variation	58	39.7%	50.9%	0.04 MB
E27	Nimzo-Indian, Saemisch variation	123	44.7%	50.0%	0.08 MB
E28	Nimzo-Indian, Saemisch variation	368	31.8%	52.6%	0.24 MB
E29	Nimzo-Indian, Saemisch, Capablanca variation	38	42.1%	42.1%	0.03 MB
E29	Nimzo-Indian, Saemisch, main line	189	36.5%	56.9%	0.13 MB
E30	Nimzo-Indian, Leningrad variation	1023	34.2%	50.0%	0.64 MB
E30	Nimzo-Indian, Leningrad, ...b5 gambit	84	33.3%	47.6%	0.05 MB
E31	Nimzo-Indian, Leningrad, main line	433	34.6%	49.4%	0.27 MB
E32	Nimzo-Indian, classical variation	8323	43.7%	53.9%	4.96 MB
E32	Nimzo-Indian, classical, Adorjan gambit	143	46.9%	53.5%	0.09 MB
E33	Nimzo-Indian, classical, 4...Nc6	293	35.8%	56.1%	0.21 MB
E33	Nimzo-Indian, classical, Milner-Barry (Zurich) variation	487	40.0%	58.8%	0.32 MB
E34	Nimzo-Indian, classical, Noa variation	1129	52.6%	53.7%	0.74 MB
E35	Nimzo-Indian, classical, Noa variation, 5.cd ed	905	49.0%	51.1%	0.55 MB
E36	Nimzo-Indian, classical, Botvinnik variation	16	43.8%	59.4%	0.01 MB
E36	Nimzo-Indian, classical, Noa variation, 5.a3	511	45.4%	53.6%	0.32 MB
E36	Nimzo-Indian, classical, Noa variation, main line	1	0.0%	0.0%	0.00 MB
E37	Nimzo-Indian, classical, Noa variation, main line, 7.Qc2	589	48.6%	60.4%	0.38 MB
E37	Nimzo-Indian, classical, San Remo variation	11	27.3%	59.1%	0.01 MB
E38	Nimzo-Indian, classical, 4...c5	826	39.6%	59.5%	0.54 MB
E39	Nimzo-Indian, classical, Pirc variation	1219	41.3%	55.0%	0.78 MB
E40	Nimzo-Indian, 4.e3	319	35.1%	55.8%	0.22 MB
E40	Nimzo-Indian, 4.e3, Taimanov variation	243	35.0%	60.3%	0.15 MB
E41	Nimzo-Indian, 4.e3 c5	1110	44.6%	54.8%	0.72 MB
E41	Nimzo-Indian, e3, Huebner variation	555	34.4%	50.9%	0.37 MB
E42	Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)	946	48.7%	54.6%	0.60 MB
E43	Nimzo-Indian, Fischer variation	820	36.5%	53.2%	0.52 MB
E44	Nimzo-Indian, Fischer variation, 5.Ne2	764	39.4%	55.3%	0.50 MB
E45	Nimzo-Indian, 4.e3, Bronstein (Byrne) variation	558	41.4%	54.4%	0.36 MB
E46	Nimzo-Indian, 4.e3 O-O	136	40.4%	51.8%	0.10 MB
E46	Nimzo-Indian, Reshevsky variation	1288	44.9%	51.2%	0.85 MB
E46	Nimzo-Indian, Simagin variation	229	45.0%	48.7%	0.16 MB
E47	Nimzo-Indian, 4.e3 O-O, 5.Bd3	927	46.3%	52.0%	0.60 MB
E48	Nimzo-Indian, 4.e3 O-O, 5.Bd3 d5	834	44.1%	52.3%	0.55 MB
E49	Nimzo-Indian, 4.e3, Botvinnik system	317	45.1%	56.0%	0.21 MB
E50	Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d5	322	44.4%	49.5%	0.23 MB
E51	Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5	396	50.0%	52.3%	0.27 MB
E51	Nimzo-Indian, 4.e3, Ragozin variation	48	35.4%	67.7%	0.04 MB
E52	Nimzo-Indian, 4.e3, main line with ...b6	736	41.3%	50.8%	0.49 MB
E53	Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd7	114	46.5%	53.1%	0.08 MB
E53	Nimzo-Indian, 4.e3, Keres variation	162	44.4%	50.6%	0.11 MB
E53	Nimzo-Indian, 4.e3, main line with ...c5	569	44.8%	55.3%	0.35 MB
E54	Nimzo-Indian, 4.e3, Gligoric system with 7...dc	1424	48.9%	55.6%	0.90 MB
E54	Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation	51	54.9%	62.7%	0.04 MB
E55	Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation	2142	48.9%	55.3%	1.38 MB
E56	Nimzo-Indian, 4.e3, main line with 7...Nc6	582	51.7%	55.6%	0.39 MB
E57	Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd	13	38.5%	57.7%	0.01 MB
E58	Nimzo-Indian, 4.e3, main line with 8...Bxc3	1650	45.0%	52.8%	1.04 MB
E59	Nimzo-Indian, 4.e3, main line	805	43.6%	53.9%	0.51 MB
E60	King's Indian defence	1540	33.8%	55.3%	0.97 MB
E60	King's Indian, 3.Nf3	4211	40.9%	57.2%	2.66 MB
E60	King's Indian, 3.g3	2699	42.5%	55.3%	1.68 MB
E60	King's Indian, 3.g3, counterthrust variation	17	29.4%	32.4%	0.01 MB
E60	King's Indian, Anti-Gruenfeld	168	38.7%	52.1%	0.12 MB
E60	King's Indian, Danube gambit	12	41.7%	54.2%	0.01 MB
E60	Queen's pawn, Mengarini attack	39	35.9%	61.5%	0.04 MB
E61	King's Indian defence, 3.Nc3	1710	36.1%	55.7%	1.08 MB
E61	King's Indian, Smyslov system	126	36.5%	52.4%	0.09 MB
E62	King's Indian, fianchetto variation	100	40.0%	54.0%	0.07 MB
E62	King's Indian, fianchetto with ...Nc6	316	33.5%	55.7%	0.21 MB
E62	King's Indian, fianchetto, Kavalek (Bronstein) variation	658	33.4%	60.0%	0.45 MB
E62	King's Indian, fianchetto, Larsen system	367	41.4%	60.8%	0.24 MB
E62	King's Indian, fianchetto, Simagin variation	101	31.7%	64.4%	0.07 MB
E62	King's Indian, fianchetto, Uhlmann (Szabo) variation	425	36.7%	57.2%	0.29 MB
E62	King's Indian, fianchetto, lesser Simagin (Spassky) variation	396	36.6%	59.7%	0.27 MB
E63	King's Indian, fianchetto, Panno variation	2540	38.0%	56.9%	1.64 MB
E64	King's Indian, fianchetto, Yugoslav system	162	42.6%	58.3%	0.11 MB
E65	King's Indian, fianchetto, Yugoslav, 7.O-O	324	46.6%	53.5%	0.22 MB
E66	King's Indian, fianchetto, Yugoslav Panno	415	33.0%	57.7%	0.27 MB
E67	King's Indian, fianchetto with ...Nd7	145	40.0%	58.6%	0.11 MB
E67	King's Indian, fianchetto, classical variation	680	42.2%	55.2%	0.46 MB
E68	King's Indian, fianchetto, classical variation, 8.e4	1600	40.4%	59.7%	1.02 MB
E69	King's Indian, fianchetto, classical main line	578	33.7%	62.7%	0.36 MB
E70	King's Indian, 4.e4	1448	33.2%	58.5%	0.91 MB
E70	King's Indian, Kramer system	542	31.5%	57.5%	0.32 MB
E70	King's Indian, accelerated Averbakh system	205	35.6%	52.9%	0.13 MB
E71	King's Indian, Makagonov system (5.h3)	1124	35.7%	59.6%	0.72 MB
E72	King's Indian with e4 & g3	159	34.6%	56.3%	0.11 MB
E72	King's Indian, Pomar system	67	37.3%	57.5%	0.05 MB
E73	King's Indian, 5.Be2	59	28.8%	63.6%	0.04 MB
E73	King's Indian, Averbakh system	1410	34.5%	56.1%	0.87 MB
E73	King's Indian, Semi-Averbakh system	139	37.4%	58.3%	0.10 MB
E74	King's Indian, Averbakh, 6...c5	559	39.2%	57.7%	0.35 MB
E75	King's Indian, Averbakh, main line	267	33.7%	57.3%	0.16 MB
E76	King's Indian, Four pawns attack	373	38.3%	58.3%	0.24 MB
E76	King's Indian, Four pawns attack, dynamic line	343	36.2%	52.2%	0.20 MB
E77	King's Indian, Four pawns attack	221	32.1%	59.0%	0.14 MB
E77	King's Indian, Four pawns attack, 6.Be2	49	40.8%	44.9%	0.03 MB
E77	King's Indian, Four pawns attack, Florentine gambit	18	38.9%	41.7%	0.01 MB
E78	King's Indian, Four pawns attack, with Be2 and Nf3	113	40.7%	57.5%	0.07 MB
E79	King's Indian, Four pawns attack, main line	57	57.9%	57.0%	0.04 MB
E80	King's Indian, Saemisch variation	711	34.0%	58.8%	0.45 MB
E81	King's Indian, Saemisch, 5...O-O	3050	35.2%	55.1%	1.78 MB
E81	King's Indian, Saemisch, Byrne variation	108	39.8%	57.9%	0.08 MB
E82	King's Indian, Saemisch, double fianchetto variation	196	36.7%	58.2%	0.13 MB
E83	King's Indian, Saemisch, 6...Nc6	198	32.3%	53.5%	0.12 MB
E83	King's Indian, Saemisch, Panno formation	473	37.2%	56.9%	0.30 MB
E83	King's Indian, Saemisch, Ruban variation	27	29.6%	51.9%	0.02 MB
E84	King's Indian, Saemisch, Panno main line	741	36.7%	54.4%	0.47 MB
E85	King's Indian, Saemisch, orthodox variation	213	39.4%	55.4%	0.14 MB
E86	King's Indian, Saemisch, orthodox, 7.Nge2 c6	648	32.9%	53.3%	0.39 MB
E87	King's Indian, Saemisch, orthodox, 7.d5	507	27.0%	57.1%	0.32 MB
E87	King's Indian, Saemisch, orthodox, Bronstein variation	1	100.0%	50.0%	0.00 MB
E88	King's Indian, Saemisch, orthodox, 7.d5 c6	494	33.4%	58.0%	0.32 MB
E89	King's Indian, Saemisch, orthodox main line	88	31.8%	55.7%	0.06 MB
E90	King's Indian, 5.Nf3	1333	33.8%	57.1%	0.86 MB
E90	King's Indian, Larsen variation	146	34.9%	59.2%	0.11 MB
E90	King's Indian, Zinnowitz variation	75	40.0%	54.7%	0.06 MB
E91	King's Indian, 6.Be2	858	34.3%	63.4%	0.57 MB
E91	King's Indian, Kazakh variation	372	37.9%	57.9%	0.26 MB
E92	King's Indian, Andersson variation	425	55.8%	48.4%	0.28 MB
E92	King's Indian, Gligoric-Taimanov system	1793	35.8%	58.6%	1.16 MB
E92	King's Indian, Petrosian system	152	27.0%	54.3%	0.10 MB
E92	King's Indian, Petrosian system, Stein variation	765	34.1%	53.9%	0.52 MB
E92	King's Indian, classical variation	39	30.8%	48.7%	0.03 MB
E93	King's Indian, Petrosian system, main line	142	33.8%	53.5%	0.10 MB
E94	King's Indian, orthodox variation	1257	39.6%	55.4%	0.82 MB
E94	King's Indian, orthodox, 7...Nbd7	1116	35.4%	60.0%	0.76 MB
E94	King's Indian, orthodox, Donner variation	306	37.3%	58.8%	0.21 MB
E95	King's Indian, orthodox, 7...Nbd7, 8.Re1	565	39.1%	56.0%	0.39 MB
E96	King's Indian, orthodox, 7...Nbd7, main line	101	38.6%	58.9%	0.07 MB
E97	King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)	4914	34.3%	56.0%	3.17 MB
E97	King's Indian, orthodox, Aronin-Taimanov, bayonet attack	1412	35.6%	58.6%	0.81 MB
E98	King's Indian, orthodox, Aronin-Taimanov, 9.Ne1	1016	27.3%	61.5%	0.65 MB
E99	King's Indian, orthodox, Aronin-Taimanov, Benko attack	153	21.6%	61.8%	0.09 MB
E99	King's Indian, orthodox, Aronin-Taimanov, main line	79	29.1%	65.2%	0.05 MB