CCRL 40/4
Downloads and Statistics
March 3, 2010
Testing summary:
Total: 534'627 games
played by 798 programs
8289 CPU days (X2 4600+)

White wins: 206'458 (38.6%)
Black wins: 163'101 (30.5%)
Draws: 165'068 (30.9%)
White score: 54.1%

Rating list

CCRL 40/4 Rating List — All engines (best versions only) (Quote)

Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz)
Computed on March 3, 2010 with Bayeselo based on 534'627 games
RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
ELO+−
1Rybka 3 64-bit 4CPU3264+10−1079.2%−221.728.9%4462 
100.0%
2Stockfish 1.6s JA 64-bit 4CPU3186+14−1467.6%−123.137.3%1843
99.2%
3Naum 4.1 64-bit 4CPU3160+17−1763.0%−91.738.1%1248
97.2%
4Deep Shredder 12 64-bit OA On 4CPU3140+13−1360.1%−72.236.4%1997
100.0%
5Spark 0.3 64-bit 4CPU3062+13−1348.3%+10.741.6%1895
96.7%
6‑7Thinker 5.4c Inert 64-bit 4CPU3047+11−1151.3%−13.336.1%3030
52.5%
6‑7Zappa Mexico II 64-bit 4CPU3047+10−1051.8%−16.439.8%3656
96.9%
8Hiarcs 12.1 4CPU3034+11−1050.6%−7.734.4%3342
55.5%
9Deep Sjeng WC2008 64-bit 4CPU3033+10−1051.0%−8.834.3%3652
74.2%
10Komodo 1.0 64-bit3026+19−1857.4%−49.940.6%944
74.9%
11Deep Fritz 10.1 4CPU3017+15−1550.7%−5.832.1%1496
94.1%
12Bright 0.4a 4CPU3002+11−1142.0%+53.133.8%2839
68.2%
13Toga II 1.4 beta5c 4CPU2998+11−1143.1%+47.337.8%3144
100.0%
14Loop M1-T 64-bit 4CPU2969+8−843.7%+42.636.8%5947
100.0%
15Onno 1.1.1 64-bit2941+12−1251.5%−12.638.5%2495
97.2%
16Deep Junior 10 4CPU2925+11−1046.0%+28.032.4%3356
98.4%
17Critter 0.52 64-bit2897+23−2366.0%−110.430.9%705
93.9%
18Ktulu 9.02878+12−1245.7%+30.132.0%2801
81.8%
19Twisted Logic 20090922 64-bit2869+16−1648.0%+14.031.2%1396
78.6%
20Chessmaster 11 4CPU2858+22−2259.2%−64.332.5%699
81.1%
21SmarThink 1.20 64-bit2846+15−1535.8%+98.833.9%1667
73.8%
22Crafty 23.0 64-bit 4CPU2838+16−1628.8%+152.228.9%1535
90.6%
23Spike 1.2 Turin2827+5−541.8%+58.832.9%20689
66.5%
24Scorpio 2.0 32-bit 4CPU2822+18−1830.9%+141.130.3%1204
61.4%
25Chess Tiger 2007.12819+9−947.7%+17.735.4%5331
96.2%
26Delfi 5.4 2CPU2804+14−1541.7%+66.132.4%1758
78.7%
27‑28Bison 9.8 32-bit2793+25−2547.6%+16.923.5%591
48.5%
27‑28Deep Frenzee May07 64-bit 2CPU2793+16−1640.5%+74.228.2%1512
65.6%
29Pharaon 3.5.1 4CPU2786+33−3440.5%+63.331.8%305
77.5%
30‑31Booot 4.15.02771+15−1447.5%+19.733.5%1691
49.9%
30‑31BugChess2 1.6.4 64-bit2771+19−1956.4%−43.430.9%957
70.9%
32Alaric 706172762+25−2551.6%−8.431.8%547
84.2%
33Colossus 2008b2748+13−1344.7%+38.429.7%2220
86.8%
34E.T. Chess 13.01.082739+10−1046.9%+24.732.1%3678
54.4%
35Sloppy 0.2.2 64-bit2738+19−1947.0%+19.836.0%960
51.1%
36Chronos 1.9.72737+16−1649.1%+6.433.2%1297
64.5%
37‑38Movei 00.8.438 (10 10 10)2734+10−1045.1%+37.530.1%3787
49.9%
37‑38WildCat 82734+12−1243.7%+49.030.3%2470
81.3%
39‑40Brutus 8.05 64-bit 2CPU2720+26−2661.6%−83.231.2%513
50.6%
39‑40Pro Deo 1.22720+12−1242.3%+58.527.4%2577
55.5%
41Ruffian 2.1.02719+14−1444.8%+38.629.9%1889
55.1%
42Gandalf 62718+12−1239.3%+82.227.8%2631
69.1%
43‑44Alfil 8.1.1 Optimized2714+12−1242.4%+59.028.4%2812
49.1%
43‑44Slow Chess Blitz WV2.12714+7−741.2%+64.429.0%8407
80.5%
45GarboChess 2.10 64-bit2707+14−1440.3%+77.025.8%2074
57.3%
46Lemming 0.34 64-bit2705+16−1644.9%+36.530.1%1370
96.0%
47‑48Chiron 0.8.72686+14−1447.8%+15.126.8%1799
49.7%
47‑48Hamsters 0.7 2CPU2686+20−2039.0%+76.135.7%862
71.1%
49SOS 5.12679+11−1047.6%+16.928.6%3478
67.6%
50Pseudo 0.7c2676+11−1050.1%−3.429.9%3499
79.0%
51The Baron 2.23 64-bit2668+16−1645.8%+28.828.8%1345
52.6%
52Aristarch 4.502667+11−1147.1%+22.727.3%3353
53.6%
53Arasan 11.3 64-bit 4CPU2666+22−2212.5%+339.513.0%1386
53.6%
54‑55Deuterium 09.01.26.4922664+35−3467.3%−138.621.6%366
50.2%
54‑55Petir 4.392664+12−1248.0%+15.432.6%2352
90.2%
56Jonny 2.83 32-bit2653+12−1247.4%+19.526.8%2427
67.0%
57Hermann 2.4 64-bit 2CPU2649+17−1755.2%−43.424.1%1397
66.7%
58Amyan 1.622643+18−1855.1%−60.927.2%1181
56.7%
59Anaconda 2.0.12641+12−1250.8%−4.830.7%2512
74.4%
60Ufim 8.022637+9−953.0%−24.328.2%4685
52.7%
61BBChess 1.3b 64-bit 2CPU2636+18−1756.7%−55.027.8%1236
70.3%
62AnMon 5.752630+16−1649.2%+3.925.5%1442
75.4%
63DanaSah 4.242617+33−3444.4%+37.826.6%312
61.2%
64Yace 0.99.872612+14−1450.7%−6.829.9%1902
51.5%
65Trace 1.37a2611+11−1149.2%+6.027.8%3300
56.3%
66Little Goliath Evolution 3.12 (TB On)2610+16−1650.3%−2.329.5%1409
88.3%
67Pepito 1.59 32-bit2596+17−1651.8%−12.731.7%1250
89.5%
68Cerebro 3.01c2580+20−2044.0%+43.325.9%931
56.3%
69‑70Bruja 1.9 64-bit JA No-int-book2577+16−1650.1%−0.226.5%1345
51.3%
69‑70Green Light Chess 3.002577+15−1549.1%+5.631.4%1568
60.6%
71Tao 5.62574+14−1449.0%+6.425.3%1839
55.4%
72Gaviota 0.74.12 64-bit 2CPU2573+19−1957.5%−59.217.7%1134
86.9%
73Abrok 5.02560+13−1348.8%+5.627.5%2069
79.6%
74Matacz 1.3 HT742551+16−1650.7%−4.828.3%1375
64.9%
75SpiderChess 0706032547+10−1048.2%+13.131.4%3636
65.1%
76King of Kings 2.562544+17−1750.4%−4.524.4%1312
57.4%
77Gaia 3.5 64-bit2542+17−1749.4%+4.023.0%1259
64.5%
78LambChop 10.992538+12−1250.4%−2.927.3%2448
75.9%
79Quark 2.352531+14−1449.9%+1.724.7%2033
86.1%
80Nejmet 3.072522+12−1248.9%+7.126.8%2730
55.5%
81Snitch 1.6.2 32-bit2520+14−1449.5%+3.125.8%1930
58.9%
82‑83Dragon 4.62518+12−1246.8%+25.025.7%2706
50.5%
82‑83NanoSzachy 3.52518+19−1957.1%−66.223.8%1103
52.5%
84Patzer 3.80 2CPU2517+19−1951.8%−15.824.6%1012
54.2%
85Delphil 1.9c2516+18−1847.3%+20.729.8%1050
54.1%
86Kiwi 0.6d2515+15−1546.1%+26.724.9%1608
57.8%
87RomiChess P3k 64-bit2512+17−1649.7%+3.426.2%1364
66.0%
88KnightDreamer 3.32508+16−1651.2%−9.627.6%1380
50.5%
89LittleThought 1.04 64-bit2507+18−1854.2%−35.918.1%1213
72.7%
90‑91Comet B502499+21−2144.9%+38.324.3%824
50.6%
90‑91Francesca MAD 0.13 Nobook2499+17−1750.2%−2.224.7%1232
71.8%
92‑93Amy 0.8.7b DC2492+15−1551.8%−15.221.6%1667
49.0%
92‑93Gosu 0.162492+14−1453.1%−24.421.0%1982
82.2%
94‑95Leila 0.53h2483+15−1557.1%−62.520.2%1729
49.7%
94‑95PostModernist 10162483+17−1749.3%+3.923.3%1243
59.8%
96Muse 0.899b2480+11−1153.2%−26.823.4%3066
68.4%
97‑98Dirty ACCA 32476+16−1651.6%−20.025.3%1537
48.4%
97‑98Djinn 0.925x2476+11−1150.1%−3.623.9%3090
53.3%
99Der Bringer 1.92475+11−1152.7%−24.123.4%3373
54.7%
100Crazy Bishop 00522474+15−1557.2%−61.322.9%1805
61.4%
101Homer 2.012470+25−2554.6%−36.719.5%606
56.4%
102Horizon 4.42467+29−2955.4%−38.526.3%414
74.6%
103‑105Betsy 6.51 Nobook2456+15−1555.8%−49.622.7%1688
48.5%
103‑105Glass 1.32456+16−1654.5%−40.522.6%1448
50.6%
103‑105Queen 3.092456+36−3648.5%+11.233.1%260
60.7%
106Amateur 2.822450+11−1152.9%−26.620.6%3269
59.8%
107Cheese 1.32448+16−1646.4%+24.224.4%1432
70.2%
108Phalanx XXII Reborn JA2442+14−1455.5%−51.819.7%2020
87.7%
109Thor's Hammer 2.28 32-bit2430+15−1558.3%−70.717.8%1945
79.3%
110Arion 1.72423+11−1148.5%+8.925.4%3191
70.3%
111Chezzz 1.0.32418+15−1558.5%−72.519.5%1696
61.1%
112OliThink 5.1.4 64-bit2412+36−3743.6%+46.622.4%272
69.9%
113KnightX 1.922402+12−1355.0%−45.720.0%2666
55.3%
114‑115Averno 0.812400+15−1456.0%−52.722.9%1879
50.7%
114‑115Popochin 3.22400+16−1645.5%+26.325.1%1528
52.2%
116Aice 0.99.22399+41−4239.7%+77.523.4%214
58.9%
117Resp 0.19 64-bit JA Nobook2394+15−1553.6%−34.720.7%1806
74.4%
118Scidlet 3.61 x64 JA2387+15−1555.2%−47.620.7%1755
58.8%
119‑121Ares 1.003a2383+34−3453.5%−32.422.0%313
50.2%
119‑121Eeyore 1.482383+14−1453.2%−29.322.0%2058
49.0%
119‑121GreKo 5.32383+41−4144.1%+37.521.5%228
61.5%
122GNU Chess 5.07 64-bit JA Nobook2376+20−2055.3%−44.218.1%1024
53.0%
123Ayito 0.2.9942375+17−1754.8%−40.418.4%1448
67.4%
124Asterisk 0.62368+25−2544.2%+41.920.5%595
52.2%
125EXchess 5.01 64-bit2367+15−1553.5%−32.222.7%1760
55.3%
126Natwarlal 0.142366+16−1644.2%+36.419.6%1610
91.4%
127Doctor 3.02348+18−1854.7%−42.126.4%1149
53.9%
128‑129Anechka 0.082347+16−1645.5%+30.319.8%1600
50.4%
128‑129Esc 1.162347+16−1657.2%−58.121.0%1633
59.0%
130Butcher 1.60n1 64-bit2344+24−2450.1%−18.518.4%723
60.4%
131Sage 2.2a2339+25−2548.1%+7.921.4%639
53.0%
132Zeus 1.272337+44−4359.0%−84.320.8%216
56.7%
133Ant 2006-F2333+17−1749.2%+6.022.0%1361
97.7%
134Dorky 3.482310+16−1653.8%−32.818.9%1600
64.5%
135‑136CyberPagno 2.12306+16−1653.1%−28.118.9%1543
49.1%
135‑136OBender 3.2.x2306+24−2442.0%+61.118.7%668
84.7%
137Madeleine 0.22291+15−1550.1%−4.320.1%1775
56.7%
138Latista (Sinobyl) 1.52289+16−1648.6%+10.323.0%1588
76.0%
139Atlas 2.202282+15−1548.5%+7.919.8%1718
70.5%
140Chispa 4.0.32276+14−1448.3%+12.536.7%1845
54.4%
141Merlin 2.0 beta2274+40−4047.3%+20.020.5%224
60.9%
142Neurosis 2.32264+44−4721.7%+228.017.4%224
57.7%
143BlackBishop 0.982259+18−1840.7%+72.916.9%1388
60.6%
144Genesis 2.02256+18−1850.4%−2.722.1%1156
62.6%
145InmiChess3.06N2252+14−1449.1%+3.118.9%2150
71.5%
146Lime 662245+18−1842.8%+57.215.8%1374
80.6%
147Sunsetter 10.3 64-bit2234+17−1749.4%+1.218.0%1451
65.6%
148Nesik 0.7.0 alpha2229+17−1748.4%+9.021.0%1413
71.2%
149Fortress 1.622223+16−1645.7%+32.620.6%1657
66.2%
150WJChess 1.642218+16−1647.2%+16.318.3%1522
54.5%
151Adam 3.02216+36−3641.6%+60.018.1%320
53.5%
152Alex 1.962214+19−1938.3%+97.916.2%1257
98.9%
153Wing 2.0a2184+16−1647.5%+17.520.6%1547
57.6%
154GK 0.90 64-bit2182+17−1742.6%+54.820.0%1453
57.6%
155BikJump 2.01 64-bit2179+24−2448.6%+10.621.8%682
71.1%
156Uragano 3D 0.872170+20−2049.6%−1.320.2%1022
72.1%
157Monarch 1.72155+42−4157.1%−46.020.6%218
60.5%
158Matheus 2.32149+17−1741.2%+68.220.7%1495
81.9%
159Bodo 0.2b2138+18−1838.0%+95.616.4%1322
87.4%
160Bestia 0.902124+15−1539.4%+86.919.0%1900
51.2%
161Matant 5.022123+45−4548.0%+19.614.1%220
61.3%
162Ax 0.82116+17−1833.4%+138.715.4%1516
65.5%
163Gibbon 2.01b2107+40−4140.2%+90.919.5%256
56.0%
164DelphiMAX 2.92103+19−1936.4%+110.915.0%1264
91.9%
165Elephant 1.062084+20−2041.1%+68.818.7%1040
81.3%
166BigLion 2.23x2068+29−2943.7%+48.715.8%500
53.3%
167Monik 2.2.22066+52−5524.5%+266.911.9%210
54.2%
168‑169FireFly 2.1.32062+41−4237.4%+105.818.7%235
49.9%
168‑169JanWillem 1.132062+21−2137.2%+99.717.7%938
58.9%
170Marvin 1.3.02059+18−1840.4%+71.620.5%1227
53.6%
171Faile 1.4.42058+14−1532.6%+149.820.2%2287
90.2%
172Micro-Max 4.82040+23−2340.0%+101.419.3%828
83.1%
173Eagle 0.7.52020+32−3253.6%−29.814.6%384
59.9%
174BibiChess 0.52015+21−2137.2%+94.921.6%869
68.9%
175Sharper 0.172008+22−2333.9%+128.515.8%911
51.2%
176Feuerstein 0.4.4.22007+40−4035.7%+122.214.4%270
62.7%
177‑178BamBam1999+21−2140.3%+81.120.9%914
50.6%
177‑178Myrddin 0.821999+25−2530.7%+169.713.8%797
76.8%
179Clueless V1.41982+35−3556.7%−54.115.9%320
99.9%
180Dabbaba 2.621905+29−3121.8%+254.911.6%623
76.3%
181Soldat 0.25b1891+22−2317.4%+323.912.4%1387
70.8%
182Chenard 2009.09.191880+31−3219.5%+315.79.1%628
70.1%
183Heracles 0.5.91867+34−3450.8%−5.120.5%331
99.9%
184Elf 1.3.01790+29−3020.1%+274.710.6%718
75.7%
185Tscp 1.811774+29−3030.6%+158.915.7%515
51.3%
186Roce 0.03601773+33−3434.1%+114.725.8%349
100.0%
187Piranha 0.51591+43−4624.7%+212.915.1%245
 

Results matrix

All engines (top 12, best versions only)
#NameELO1
Rybka
2
Stock
3
Naum
4
Deep
5
Spark
6
Think
7
Zappa
8
Hiarc
9
Deep
10
Komod
11
Deep
12
Brigh
1Rybka 3 64-bit 4CPU3264 58 − 42
+41−25=34
−24		35 − 15
+26−6=18
+26		66 − 34
+45−13=42
−21		80 − 20
+66−6=28
+14		82.5 − 16.5
+70−4=25
+31		 81 − 19
+66−4=30
−8		88 − 12
+80−4=16
+89		 82 − 18
+68−4=28
−13		86.5 − 13.5
+78−5=17
+40
2Stockfish 1.6s JA 64-bit 4CPU318642 − 58
+25−41=34
+24		 25.5 − 24.5
+16−15=19
−20		57.5 − 42.5
+30−15=55
−3		76.5 − 22.5
+59−5=35
+61		70.5 − 29.5
+54−13=33
−1		69.5 − 30.5
+54−15=31
−4		68 − 32
+50−14=36
−33		74 − 26
+56−8=36
+7		  72.5 − 26.5
+60−14=25
−16
3Naum 4.1 64-bit 4CPU316015 − 35
+6−26=18
−26		24.5 − 25.5
+15−16=19
+20		 59.5 − 40.5
+40−21=39
+41		33.5 − 16.5
+21−4=25
+6		30.5 − 19.5
+21−10=19
−40		30 − 20
+19−9=22
−49		37 − 13
+28−4=18
+34		33 − 17
+22−6=22
−29		  35 − 15
+28−8=14
−18
4Deep Shredder 12 64-bit OA On 4CPU314034 − 66
+13−45=42
+21		42.5 − 57.5
+15−30=55
+3		40.5 − 59.5
+21−40=39
−41		 57.5 − 42.5
+37−22=41
−29		59.5 − 40.5
+46−27=27
−27		68 − 32
+49−13=38
+24		73 − 27
+56−10=34
+49		64.5 − 35.5
+51−22=27
−3		  72 − 28
+53−9=38
+6
5Spark 0.3 64-bit 4CPU306220 − 80
+6−66=28
−14		22.5 − 76.5
+5−59=35
−61		16.5 − 33.5
+4−21=25
−6		42.5 − 57.5
+22−37=41
+29		 53 − 47
+31−25=44
+2		45 − 55
+24−34=42
−48		61 − 38
+43−20=36
+48		58 − 42
+36−20=44
+19		  59 − 41
+42−24=34
−1
6Thinker 5.4c Inert 64-bit 4CPU304716.5 − 82.5
+4−70=25
−31		29.5 − 70.5
+13−54=33
+1		19.5 − 30.5
+10−21=19
+40		40.5 − 59.5
+27−46=27
+27		47 − 53
+25−31=44
−2		 47 − 53
+25−31=44
−17		48.5 − 51.5
+30−33=37
−24		54 − 46
+37−29=34
+14		  56 − 44
+38−26=36
−6
7Zappa Mexico II 64-bit 4CPU3047 30.5 − 69.5
+15−54=31
+4		20 − 30
+9−19=22
+49		32 − 68
+13−49=38
−24		55 − 45
+34−24=42
+48		53 − 47
+31−25=44
+17		 59 − 41
+36−18=46
+41		57 − 43
+39−25=36
+33		  59.5 − 40.5
+41−22=37
+15
8Hiarcs 12.1 4CPU303419 − 81
+4−66=30
+8		32 − 68
+14−50=36
+33		13 − 37
+4−28=18
−34		27 − 73
+10−56=34
−49		38 − 61
+20−43=36
−48		51.5 − 48.5
+33−30=37
+24		41 − 59
+18−36=46
−41		 52.5 − 47.5
+36−31=33
+14		  63 − 37
+42−16=42
+49
9Deep Sjeng WC2008 64-bit 4CPU303312 − 88
+4−80=16
−89		26 − 74
+8−56=36
−7		17 − 33
+6−22=22
+29		35.5 − 64.5
+22−51=27
+3		42 − 58
+20−36=44
−19		46 − 54
+29−37=34
−14		43 − 57
+25−39=36
−33		47.5 − 52.5
+31−36=33
−14		   50 − 50
+32−32=36
−29
10Komodo 1.0 64-bit3026            
11Deep Fritz 10.1 4CPU301718 − 82
+4−68=28
+13		           
12Bright 0.4a 4CPU300213.5 − 86.5
+5−78=17
−40		26.5 − 72.5
+14−60=25
+16		15 − 35
+8−28=14
+18		28 − 72
+9−53=38
−6		41 − 59
+24−42=34
+1		44 − 56
+26−38=36
+6		40.5 − 59.5
+22−41=37
−15		37 − 63
+16−42=42
−49		50 − 50
+32−32=36
+29		   
Performance color legend:
(Only pairs with at least 30 games)
-120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120

LOS matrix

All engines (top 12, best versions only)
#NameELO1
Ryb
2
Sto
3
Nau
4
Dee
5
Spa
6
Thi
7
Zap
8
Hia
9
Dee
10
Kom
11
Dee
12
Bri
1Rybka 3 64-bit 4CPU3264 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish 1.6s JA 64-bit 4CPU31860.0 99.2100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Naum 4.1 64-bit 4CPU31600.00.8 97.2100.0100.0100.0100.0100.0100.0100.0100.0
4Deep Shredder 12 64-bit OA On 4CPU31400.00.02.8 100.0100.0100.0100.0100.0100.0100.0100.0
5Spark 0.3 64-bit 4CPU30620.00.00.00.0 96.797.4100.0100.099.9100.0100.0
6Thinker 5.4c Inert 64-bit 4CPU30470.00.00.00.03.3 52.596.797.897.199.9100.0
7Zappa Mexico II 64-bit 4CPU30470.00.00.00.02.647.5 96.998.097.299.9100.0
8Hiarcs 12.1 4CPU30340.00.00.00.00.03.33.1 55.576.796.0100.0
9Deep Sjeng WC2008 64-bit 4CPU30330.00.00.00.00.02.22.044.5 74.295.3100.0
10Komodo 1.0 64-bit30260.00.00.00.00.12.92.823.325.8 74.998.1
11Deep Fritz 10.1 4CPU30170.00.00.00.00.00.10.14.04.725.1 94.1
12Bright 0.4a 4CPU30020.00.00.00.00.00.00.00.00.01.95.9 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Complete list (all engines and versions)

Pure list (removes rating distortions)

Selections from the complete rating list:

All engines   |   32-bit

1-2-CPU engines   |   32-bit

Single-CPU engines   |   32-bit

Multi-CPU engines   |   32-bit

2-CPU engines   |   32-bit

4-CPU engines   |   32-bit

Free engines   |   32-bit

Free 1-2-CPU engines   |   32-bit

Free single-CPU engines   |   32-bit

Free multi-CPU engines   |   32-bit

Free 2-CPU engines   |   32-bit

Free 4-CPU engines   |   32-bit

Open source engines   |   32-bit

Open source 1-2-CPU engines   |   32-bit

Open source single-CPU engines   |   32-bit

Open source multi-CPU engines   |   32-bit

Open source 2-CPU engines   |   32-bit

Open source 4-CPU engines   |   32-bit

Custom comparison

Step 1. Select class of engines to compare:

Only public releases (no private engines)
Only stable versions (no beta versions)
Only engines with default settings
Only new versions
Only best versions from each family

Select additional individual engines or engine families. You can select multiple items in each list by pressing SHIFT or CTRL while selecting. These lists can be used all at the same time, all selections will be simply combined together.

Families

Engines


Step 2. Select output that you want to see.

Rating list
Testing profile
  (Step: , Numbers: )

Results table
Performance table
Score table
LOS table
Proportion of draws
Number of games
Number of connecting games
Percentage of connecting games
 Score with common opponents
Score with all opponents
Performance with common opponents
Performance with all opponents
LOS with common opponents
LOS with all opponents

Maximum size of cross-tables (from 2 to 100):
Limit crosstables to engines in ELO range: to
Match length (Minimum number of games to highlight with color):

Cross-tables show only best version of each engine
Sort cross-tables by:   Rating   Name
Highlight diagonal of cells wide. (0 to highlight everything)

Reference rating list:
Recalibrate:
  No recalibration (reference and current list are compared as they are)
  Recalibrate reference list to current one using selected engines only
  Recalibrate reference list to current one using all common engines
  Recalibrate current list to reference using selected engines only
  Recalibrate current list to reference using all common engines


Step 3.


Download games in PGN format

This is an interim "live" update, it does not include PGN files.
You can find the latest PGN files at our latest stable update

Various statistics

Created in 2005-2008 by CCRL team
Last games added on March 3, 2010