CCRL 40/4
Downloads and Statistics
May 5, 2012
Testing summary:
Total: 868'392 games
played by 963 programs
13182 CPU days (X2 4600+)

White wins: 341'338 (39.3%)
Black wins: 277'463 (32.0%)
Draws: 249'591 (28.7%)
White score: 53.7%

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 May 5, 2012 with Bayeselo based on 868'392 games

Color legend: Commercial, Free, Open source, Private, Controversial.
Bold font - tested with 200 games or more. Normal font - less than 200 games.
"Controversial" means that the origin of those engines is debated in the community (CCC, OpenChess).

RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
Elo+−
1Houdini 2.0c 64-bit 6CPU3408+11−1168.8%−135.837.8%2826 
100.0%
2Critter 1.4 64-bit 6CPU3348+16−1564.7%−108.844.5%1407
56.8%
3Stockfish 2.2.2 64-bit 6CPU3346+19−1963.5%−102.144.4%910
74.9%
4Rybka 4.1 64-bit 6CPU3339+11−1157.5%−54.344.6%2632
96.2%
5IvanHoe 9.46h 64-bit 6CPU3322+16−1662.8%−95.343.8%1385
100.0%
6Strelka 5.1 64-bit3236+19−1964.5%−108.740.8%1006
81.3%
7Komodo 4 64-bit3227+11−1060.5%−81.636.5%3520
100.0%
8Naum 4.2 64-bit 4CPU3194+9−952.6%−17.041.5%4677
100.0%
9Spike 1.4 Leiden 4CPU3143+12−1238.9%+76.736.9%2533
54.1%
10Deep Shredder 12 64-bit OA On 4CPU3142+9−952.1%−14.638.2%4672
95.5%
11Hiarcs 13.2 4CPU3129+13−1346.6%+24.439.2%1945
58.2%
12Deep Fritz 12 4CPU3126+24−2447.3%+17.642.6%531
73.7%
13Spark 1.0 64-bit 4CPU3117+10−1139.7%+75.538.2%3418
72.7%
14Deep Junior 13 64-bit 4CPU3111+19−1944.7%+38.835.2%948
100.0%
15Protector 1.4.0 64-bit 4CPU3068+13−1330.7%+144.432.5%2403
68.0%
16‑17Chiron 1.1a 64-bit3063+17−1760.1%−73.832.6%1281
50.6%
16‑17Zappa Mexico II 64-bit 4CPU3063+8−845.6%+28.539.8%6165
99.7%
18Thinker 5.4c Inert 64-bit 4CPU3047+9−943.2%+46.334.9%4942
59.1%
19Onno 1.2.70 64-bit 4CPU3046+12−1232.8%+126.233.8%2538
68.3%
20Gull 1.1 64-bit3041+13−1347.2%+18.535.2%2230
62.3%
21Deep Sjeng WC2008 64-bit 4CPU3039+8−843.9%+42.633.7%5414
80.6%
22Tornado 4.88 64-bit 6CPU3031+17−1740.5%+71.631.5%1291
99.3%
23Bright 0.4a 4CPU3005+11−1142.0%+53.433.8%2889
73.9%
24Toga II 1.4 beta5c 4CPU3001+9−937.1%+92.635.0%5121
76.5%
25Quazar 0.4 64-bit2993+18−1868.9%−143.930.2%1226
55.1%
26Hannibal 1.1 64-bit2992+14−1449.7%+2.331.5%1811
97.9%
27Loop M1-T 64-bit 4CPU2974+8−843.7%+42.636.0%5759
96.9%
28Nemo 1.0.1b 64-bit2956+17−1756.6%−48.335.6%1168
57.5%
29BugChess2 1.9 64-bit 4CPU2953+21−2156.7%−47.031.8%795
93.4%
30Booot 5.1.02936+11−1148.0%+14.932.3%2941
69.3%
31Umko 1.2 64-bit2931+15−1551.1%−8.633.9%1588
63.8%
32Jonny 4.00 2CPU2927+17−1747.7%+14.134.5%1216
66.4%
33Gaviota 0.85.1 64-bit 6CPU2921+20−2138.3%+93.225.7%952
98.2%
34Texel 1.01 64-bit2892+18−1843.4%+45.129.6%1069
73.0%
35Crafty 23.4 64-bit2885+13−1345.6%+37.028.4%2366
91.0%
36‑37Ktulu 9.02874+9−1041.4%+61.631.1%4414
53.0%
36‑37Scorpio 2.7 64-bit2874+14−1451.0%−3.629.7%1856
71.9%
38Twisted Logic 20090922 64-bit2869+10−1045.7%+32.129.0%4180
75.4%
39Frenzee 3.5.19 64-bit2863+13−1348.4%+12.129.5%2151
62.7%
40Chessmaster 11 4CPU2859+22−2259.2%−64.032.4%698
71.9%
41Bison 9.11 64-bit2851+12−1249.5%+7.024.4%2636
86.2%
42SmarThink 1.20 64-bit2842+11−1135.2%+107.531.4%3312
84.2%
43Chronos 1.9.9 64-bit2835+10−1046.0%+34.031.7%3730
85.9%
44Bobcat 3.25 64-bit2822+22−2252.8%−22.536.5%663
61.6%
45Chess Tiger 2007.12818+8−845.5%+36.034.3%5889
97.5%
46Delfi 5.4 2CPU2804+13−1340.7%+71.330.5%2438
82.1%
47Pharaon 3.5.1 4CPU2787+33−3440.5%+63.531.6%304
70.7%
48RedQueen 1.0.0 64-bit2776+14−1457.5%−54.926.8%1818
62.2%
49Daydreamer 1.75 64-bit2774+11−1149.1%+9.830.6%3137
77.7%
50Dirty 25Aug2011 64-bit2767+15−1553.9%−27.226.4%1600
59.4%
51Alaric 7072765+7−845.4%+35.227.4%7872
90.5%
52Naraku 1.312755+14−1451.0%−6.325.4%2013
86.7%
53Colossus 2008b2746+9−945.4%+35.229.3%5535
73.2%
54E.T. Chess 13.01.082742+8−846.2%+30.731.2%6368
64.9%
55Cyrano 06b17 64-bit2740+11−1149.7%+4.828.4%3019
56.2%
56Deuterium 11.01.28.1592738+14−1351.8%−13.730.3%2014
53.7%
57Cheng3 1.07 64-bit2737+26−2645.0%+35.130.1%515
51.5%
58Alfil 12 MT 2CPU2736+29−2947.5%+16.022.8%416
52.3%
59WildCat 82735+8−845.1%+38.129.6%6168
56.4%
60Rodent 0.13 64-bit2733+28−2854.0%−26.826.5%427
53.9%
61‑62Movei 00.8.438 (10 10 10)2731+8−843.6%+49.629.1%6495
52.4%
61‑62ProDeo 1.72731+15−1543.9%+47.421.7%1711
55.2%
63Hamsters 0.7.1 2CPU2729+17−1752.5%−17.633.1%1201
54.1%
64Brutus 8.05 64-bit 2CPU2728+17−1753.5%−26.831.4%1258
65.5%
65Gandalf 62724+11−1142.0%+62.628.2%3480
56.9%
66Sloppy 0.2.2 64-bit2723+10−1044.4%+41.730.3%3912
92.4%
67Slow Chess Blitz WV2.12715+7−743.1%+51.729.4%9777
64.7%
68Ruffian 2.1.02712+12−1245.0%+38.629.8%2786
62.2%
69Philou 3.7 64-bit2709+16−1750.7%−4.234.5%1240
57.9%
70Lemming 0.34 64-bit2707+16−1644.9%+36.330.1%1370
56.1%
71‑72GNU Chess 5.07.173b 64-bit2705+14−1348.8%+8.927.8%1990
51.4%
71‑72GarboChess 2.20 64-bit2705+14−1449.4%+3.125.1%1837
82.2%
73‑74Amyan 1.722697+10−1048.5%+10.427.8%4005
50.0%
73‑74Arasan 14.1 64-bit2697+30−3147.0%+23.026.2%378
61.3%
75N2 0.4 64-bit2692+11−1150.0%+0.831.9%3130
55.1%
76Godel 2.0.5 64-bit2691+13−1361.7%−89.227.1%2349
86.1%
77‑80CuckooChess 1.12 64-bit2680+15−1552.8%−20.425.7%1644
52.1%
77‑80Francesca MAD 0.192680+15−1552.5%−20.128.2%1703
47.9%
77‑80Pseudo 0.7c2680+9−949.2%+4.429.2%5378
52.2%
77‑80Rotor 0.62680+12−1250.5%−3.529.1%2733
67.1%
81SOS 5.12677+9−945.6%+30.428.5%5403
89.0%
82Aristarch 4.502670+8−947.3%+19.226.7%5276
53.7%
83Hermann 2.8 64-bit 2CPU2669+18−1848.9%+8.125.8%1101
62.9%
84Petir 4.392665+11−1146.6%+25.132.2%2772
58.7%
85Glass 1.7 64-bit2663+13−1350.7%−6.430.1%2020
60.2%
86The Baron 2.23 64-bit2661+9−947.7%+15.926.6%5168
98.5%
87Anaconda 2.0.12646+11−1150.7%−4.630.7%2963
83.2%
88AnMon 5.752639+9−947.0%+21.324.7%4693
59.9%
89BBChess 1.3b 64-bit 2CPU2637+15−1554.9%−40.028.4%1636
61.4%
90Ufim 8.022635+7−850.4%−4.528.4%6955
54.7%
91DanaSah 4.662634+18−1848.7%+8.825.3%1177
77.3%
92‑93Delphil 2.8 2CPU2624+20−2059.5%−65.033.1%890
47.2%
92‑93GreKo 8.2 64-bit2624+14−1449.9%+1.329.0%1766
78.3%
94Pepito 1.59.2 64-bit2616+16−1644.4%+39.828.1%1425
55.1%
95Rodin 4.02615+14−1452.5%−19.028.2%1931
63.2%
96‑98Green Light Chess 3.01.2.22612+11−1143.9%+44.328.7%3328
50.1%
96‑98Little Goliath Evolution 3.122612+8−848.7%+8.727.6%7378
46.2%
96‑98Yace 0.99.872612+10−949.2%+5.028.5%4230
56.3%
99Pupsi2 0.082611+13−1351.1%−9.427.0%2261
55.2%
100Trace 1.37a2610+9−948.4%+11.826.9%5488
78.3%
101Dorky 4.0 64-bit 2CPU2601+22−2265.5%−109.528.1%748
58.9%
102NanoSzachy 3.92598+13−1348.0%+13.928.9%2060
82.9%
103Bruja 1.9 64-bit JA No-int-book2590+11−1146.3%+27.425.6%2897
54.4%
104Atlas 3.14b 64-bit 2CPU2588+23−2439.6%+80.224.9%686
53.5%
105Murka 2 64-bit2587+15−1553.2%−23.928.1%1678
59.4%
106Cheese 1.4 64-bit2584+17−1749.8%+0.527.6%1169
52.7%
107Tao 5.62583+11−1148.4%+10.925.6%3349
60.9%
108Cerebro 3.03d2582+9−948.1%+12.924.1%4735
78.8%
109Xpdnt 0910072575+14−1451.9%−14.227.0%1842
69.5%
110Pawny 0.3 64-bit2570+14−1546.0%+28.128.3%1713
75.9%
111Kiwi 0.6d 64-bit2563+13−1348.6%+10.925.6%2334
63.1%
112LittleThought 1.052 64-bit 2CPU2559+18−1839.7%+77.023.0%1114
78.7%
113Counter 1.22551+11−1149.3%+5.137.0%2700
56.6%
114Matacz 1.42549+12−1252.7%−23.726.1%2516
73.9%
115SpiderChess 0706032544+8−947.0%+21.131.1%5402
66.4%
116Abrok 5.02542+10−1043.7%+44.725.8%4040
57.3%
117King of Kings 2.562540+12−1247.1%+21.823.6%2810
67.6%
118‑119Eeyore 1.52 64-bit2536+16−1645.7%+31.625.1%1525
50.3%
118‑119LambChop 10.992536+10−1049.2%+5.727.3%4111
64.9%
120Quark 2.352533+11−1149.0%+8.025.7%3130
65.5%
121Nejmet 3.072530+9−949.8%+0.627.1%4755
65.0%
122‑123Gaia 3.5 64-bit2528+11−1145.8%+30.721.4%3268
47.0%
122‑123Hussar 0.42528+14−1454.4%−33.022.1%1975
56.5%
124Snitch 1.6.2 32-bit2527+11−1148.4%+11.925.3%3086
60.9%
125OliThink 5.3.0 64-bit2525+14−1446.6%+24.423.4%1901
51.2%
126‑127Dragon 4.62524+9−948.8%+9.225.2%4659
50.8%
126‑127RomiChess P3L 64-bit2524+26−2645.6%+30.925.2%524
52.1%
128Simplex 0.9.8 64-bit2523+16−1653.7%−29.522.3%1442
59.5%
129Patzer 3.80 2CPU2520+20−1952.5%−20.624.3%969
55.4%
130Typhoon 1.00-3582518+17−1745.5%+33.923.4%1374
85.9%
131KnightDreamer 3.32507+13−1350.8%−5.527.1%2266
84.4%
132Comet B502499+11−1146.3%+26.123.6%3173
62.7%
133Leila 0.53h2496+10−1053.1%−27.422.4%4177
78.8%
134Amy 0.8.7b DC2491+10−1047.3%+18.222.4%3757
69.2%
135‑136Diablo 0.5.12487+12−1248.4%+11.927.9%2639
49.3%
135‑136Phalanx XXIII2487+18−1849.6%+3.119.7%1213
55.5%
137PostModernist 10162486+14−1450.5%−4.024.7%1811
55.1%
138Gosu 0.162485+9−951.4%−11.321.6%5319
68.1%
139Muse 0.899b2482+9−951.5%−14.023.6%4919
69.1%
140‑141Djinn 0.925x2479+9−949.9%−1.424.9%4756
49.1%
140‑141Ghost 2.0.1 32-bit2479+18−1753.5%−26.223.3%1206
55.1%
142Der Bringer 1.92478+9−951.6%−15.622.8%5035
88.3%
143‑144Crazy Bishop 00522470+11−1152.5%−23.523.7%3390
49.9%
143‑144Ifrit m1.5 64-bit2470+30−3054.3%−31.323.4%397
56.3%
145PikoSzachy 3.32467+16−1651.9%−15.723.2%1441
73.0%
146Homer 2.012461+11−1150.9%−7.624.4%3293
57.6%
147Betsy 6.51 Nobook2459+12−1255.0%−40.623.6%2621
57.7%
148Amateur 2.822458+9−952.2%−19.720.9%4991
66.3%
149Alex 2.14a 64-bit2454+17−1745.6%+32.223.1%1327
58.9%
150‑151Plisk 0.2.7d 64-bit2451+16−1650.5%−4.221.5%1566
53.5%
150‑151Queen 4.032451+10−1048.2%+11.229.2%3936
66.3%
152Horizon 4.42448+10−1048.7%+9.422.8%3643
55.3%
153EXchess 6.02b 64-bit2446+17−1746.0%+28.625.5%1180
76.7%
154iCE 0.22437+19−1942.9%+52.226.1%953
52.9%
155‑156Arion 1.72436+9−950.3%−2.625.7%5418
52.2%
155‑156Thor's Hammer 2.28 32-bit2436+13−1356.3%−53.618.6%2412
61.7%
157Sage 3.532433+10−1047.8%+15.922.4%4083
53.5%
158Tytan 9.32 64-bit2432+15−1549.2%+5.724.4%1528
58.7%
159‑160Butcher 1.61 64-bit 2CPU2430+20−2046.8%+22.322.0%941
50.0%
159‑160Sorgenkind 0.42430+14−1447.8%+16.421.4%2007
59.7%
161Ares 1.0042427+16−1654.6%−37.322.2%1580
57.3%
162Chezzz 1.0.32425+12−1254.5%−38.119.5%2746
92.4%
163‑164Asterisk 0.62414+11−1150.6%−5.224.4%3223
49.2%
163‑164Nebiyu 1.22414+41−4227.5%+218.79.5%316
55.8%
165‑167Aice 0.99.22411+12−1248.5%+9.424.2%2509
47.9%
165‑167Averno 0.812411+12−1253.3%−30.223.0%2591
52.3%
165‑167Sungorus 1.4 64-bit2411+14−1353.2%−25.422.1%2146
53.5%
168Joker 1.1.142410+14−1447.5%+16.221.9%1862
72.2%
169‑170Resp 0.19 64-bit JA Nobook2405+11−1150.7%−10.021.7%3352
48.3%
169‑170TJchess 1.012405+15−1549.1%+7.324.1%1604
53.1%
171KnightX 1.922404+9−951.5%−14.921.7%5051
93.4%
172Ayito 0.2.9942393+12−1253.8%−30.818.5%2853
78.9%
173Scidlet 3.61 x64 JA2387+12−1251.9%−19.921.4%2638
55.9%
174Matilde 2008 64-bit2385+14−1452.3%−18.421.4%1960
72.7%
175Popochin 3.22380+10−1048.7%+7.825.3%4139
87.0%
176Natwarlal 0.142373+10−1048.3%+10.219.9%4465
62.6%
177Sjakk 1.1.92369+18−1850.0%+0.125.0%1150
66.1%
178Esc 1.162365+12−1254.3%−35.321.4%2701
65.0%
179‑180Doctor 3.02361+19−1954.1%−38.727.0%1085
49.2%
179‑180Zeus 1.292361+12−1249.5%+4.424.5%2651
75.5%
181Ant 2006-F2355+12−1250.0%−0.720.8%2595
75.9%
182Buzz 0.08 64-bit2345+24−2461.5%−92.914.3%725
61.9%
183AliChess 4.252341+15−1545.3%+36.616.0%1784
55.2%
184Anechka 0.082340+10−1047.3%+18.820.5%4730
54.6%
185Myrddin 0.85 64-bit2339+17−1751.9%−15.423.0%1330
65.7%
186Waxman 20102334+14−1440.9%+67.325.4%1916
58.4%
187EveAnn 1.662332+17−1746.9%+23.322.7%1270
70.1%
188‑189Adam 3.32326+15−1548.2%+16.318.2%1644
50.5%
188‑189Jazz 501 64-bit2326+18−1851.0%−6.121.7%1157
67.4%
190OBender 3.2.x2321+15−1448.2%+9.718.9%1908
53.2%
191Gibbon 2.52a2319+25−2549.6%+1.519.0%641
72.1%
192CyberPagno 2.12311+11−1251.7%−16.820.1%3114
58.8%
193ECE 11.012309+19−1947.6%+17.621.1%1021
52.4%
194RattateChess 1.0 Nosferatu2308+23−2347.7%+11.523.1%683
71.8%
195Chispa 4.0.32301+10−1050.3%−3.734.6%4100
59.9%
196Mediocre 0.42298+17−1746.2%+28.021.7%1242
52.5%
197Latista (Sinobyl) 1.52297+12−1246.7%+24.023.2%2566
57.5%
198Beowulf 2.4a 32-bit2296+15−1548.0%+13.122.3%1746
51.9%
199Madeleine 0.22295+13−1348.4%+9.720.1%2460
67.4%
200Uralochka 1.1b2291+16−1650.7%−7.221.6%1493
50.7%
201Feuerstein 0.4.6.12290+24−2369.7%−170.115.8%795
68.6%
202Atak 6.82283+14−1548.1%+13.621.5%1834
88.7%
203Genesis 2.02272+12−1251.2%−9.321.6%2529
74.6%
204BlackBishop 1.02266+12−1247.4%+18.520.8%2549
59.7%
205InmiChess3.06N2264+11−1150.4%−4.920.1%3529
66.1%
206DoubleCheck 1.4 64-bit2258+25−2544.0%+46.221.9%606
55.9%
207Kurt 0.9.2.2 64-bit2256+15−1549.9%−0.720.0%1813
61.7%
208NagaSkaki 5.122253+14−1546.2%+31.524.0%1845
74.6%
209‑210Lime 662247+13−1344.4%+42.916.3%2534
50.3%
209‑210Sunsetter 10.3 64-bit2247+14−1451.1%−11.119.4%2061
55.1%
211Alarm 0.93.12245+12−1252.7%−21.517.9%2803
80.8%
212Nesik 0.7.0 alpha2238+13−1349.0%+5.321.5%2376
63.5%
213Fortress 1.622235+10−1149.9%−0.521.0%3716
66.2%
214‑215Firefly 2.5.8 64-bit2231+17−1753.9%−31.518.5%1336
48.8%
214‑215WJChess 1.642231+12−1248.9%+5.020.5%2962
54.2%
216Bearded 06-292230+19−1963.8%−112.517.0%1200
77.5%
217KnockOut 0.7.1 32-bit2220+19−1953.2%−28.218.1%1078
79.5%
218GK 0.90 64-bit2210+14−1447.9%+14.620.3%2128
63.1%
219Alf 1.092206+16−1650.0%+0.522.6%1552
62.6%
220Clarabit 1.00 64-bit2203+17−1748.6%+10.323.8%1254
75.6%
221Wing 2.0a2196+11−1150.7%−7.920.8%3146
57.8%
222‑223Rhetoric 0.10.d2192+29−3030.5%+151.315.9%473
50.6%
222‑223Uragano 3D 0.872192+15−1553.4%−27.820.1%1795
81.8%
224BikJump 2.01 64-bit2183+14−1449.3%+3.420.3%1954
60.0%
225Parrot 0707222180+16−1649.7%+1.720.3%1423
93.4%
226Dolphin 1.02161+19−1945.4%+36.615.6%1180
65.6%
227Matheus 2.32157+11−1147.7%+16.620.9%3343
62.3%
228Monarch 1.72154+13−1353.7%−30.720.1%2329
56.2%
229ChessMind 0.822152+18−1950.1%−2.117.3%1157
51.8%
230Gerbil 0.2 64-bit2151+20−2057.0%−60.217.0%1055
62.4%
231Bodo 0.2b2148+13−1345.2%+38.118.3%2378
80.7%
232Bestia 0.902140+11−1146.8%+27.320.0%3596
57.2%
233ProChess 101CN2138+20−2053.0%−23.317.7%947
54.0%
234Ax 0.82137+13−1342.8%+60.516.3%2486
55.9%
235RDChess 3.232136+15−1553.3%−29.220.0%1785
60.2%
236Jabba 1.0 64-bit2132+18−1849.4%+4.520.1%1140
65.9%
237Zeta Dva 0210 64-bit2127+20−2051.7%−12.513.9%966
57.9%
238ZCT 0.3.2500 64-bit2124+23−2350.7%−6.314.9%758
75.9%
239DelphiMAX 2.92114+14−1444.7%+43.715.5%2190
83.0%
240Requiem 0.532105+14−1449.4%+3.443.5%1757
54.9%
241‑242AdroitChess 0.32103+21−2158.8%−74.017.1%920
51.0%
241‑242Armageddon 2.3082103+15−1548.9%+4.024.4%1677
65.2%
243‑244Bubble 1.52098+20−2047.6%+17.917.2%956
49.4%
243‑244Sjaak 3992098+19−1948.3%+13.119.0%1038
63.1%
245BigLion 2.23x2095+11−1146.3%+26.018.9%3616
52.4%
246Elephant 1.062094+14−1446.8%+23.317.2%2139
79.7%
247Small Potato 0.6.12086+12−1348.4%+8.720.9%2549
91.0%
248Faile 1.4.42075+11−1142.2%+69.421.7%3765
63.6%
249‑250Cilian 4.142072+14−1445.4%+34.526.0%1899
50.2%
249‑250Monik 2.2.3 64-bit2072+18−1849.3%+8.916.7%1283
53.1%
251‑252Etude 0.1.22071+17−1748.2%+13.822.6%1246
52.5%
251‑252SSEChessII 2.05 DC2071+13−1353.2%−29.019.4%2314
55.2%
253BSC 3.92069+21−2151.6%−11.812.8%956
59.0%
254Matant 5.042066+17−1754.7%−40.817.0%1419
68.2%
255Marvin 1.3.02061+11−1146.6%+24.519.7%3401
54.7%
256JanWillem 1.132060+12−1246.7%+24.317.2%2740
87.7%
257‑258Micro-Max 4.82051+11−1146.2%+33.322.3%3641
47.7%
257‑258Rival 1.182051+13−1352.3%−22.218.0%2217
85.1%
259Mustang 4.972041+15−1551.9%−17.725.4%1647
64.6%
260ChessKISS 1.32037+15−1553.0%−20.719.1%1713
61.8%
261Sharper 0.172034+14−1443.8%+47.116.7%2242
79.4%
262Smash 1.0.32026+12−1247.8%+16.117.7%2717
61.8%
263Heracles 0.6.162023+17−1741.6%+63.719.0%1502
59.7%
264BibiChess 0.52020+14−1446.1%+25.720.9%2097
66.0%
265BamBam2016+18−1942.6%+59.319.8%1224
60.6%
266Eagle 0.7.52012+14−1451.5%−11.313.2%2144
62.2%
267IACH 0.56z2009+16−1652.4%−19.619.4%1485
72.5%
268Warrior 1.0.32003+13−1350.1%−3.320.7%2568
59.4%
269Clueless V1.42001+12−1249.4%+4.513.6%3041
67.8%
270SnailChess 4.0131996+16−1654.0%−31.020.5%1637
66.0%
271Morphy 3.221992+15−1552.8%−25.022.8%1789
86.2%
272Surprise 4.3b131978+20−2145.6%+35.712.7%1026
96.0%
273Roce 0.03901955+17−1747.7%+17.719.0%1417
83.2%
274Simontacchi 1.811943+18−1854.2%−34.012.8%1371
86.9%
275Ajedrez Tactico 2.73b1929+19−1952.7%−21.916.1%1152
60.5%
276RataAeroespacial 0.2.11924+26−2652.7%−20.412.7%591
58.1%
277Dabbaba 2.621921+18−1838.1%+104.013.7%1405
63.6%
278MatMoi 7.15.0-cct1915+27−2751.1%−6.415.1%544
63.8%
279Beaches 2.321910+17−1742.8%+55.116.5%1428
61.0%
280Predateur 2.1 64-bit1906+17−1744.4%+46.115.0%1449
62.8%
281Cecir 3.51902+17−1748.1%+13.818.8%1337
69.2%
282Soldat 0.25b1897+14−1432.9%+166.917.4%2814
89.2%
283Grizzly 1.40.1b1883+18−1849.1%+6.811.8%1346
82.6%
284Embracer 1.121871+18−1846.9%+25.323.5%1249
57.1%
285Chenard 2010.08.23 64-bit1869+18−1842.8%+59.514.7%1324
85.7%
286Robin 0.9831856+17−1748.4%+12.419.9%1481
99.0%
287Laurifer 1.01831+15−1539.3%+83.819.1%2113
62.1%
288Elf 1.3.01828+14−1437.2%+110.414.9%2448
93.8%
289Adamant 1.71813+13−1340.1%+81.515.4%2607
67.3%
290Aldebaran 0.7.01808+16−1643.0%+52.433.1%1497
53.6%
291Tscp 1.811807+16−1643.3%+58.215.8%1775
64.5%
292‑293GChess IV 0.2.01803+18−1857.9%−60.130.4%1186
48.1%
292‑293SEE 0.6.91803+17−1751.8%−18.520.1%1391
81.2%
294Bace 0.451793+16−1651.0%−10.718.6%1631
89.3%
295Mizar 3.01779+15−1644.4%+50.516.2%1892
70.6%
296PolarChess 1.31773+17−1751.9%−16.017.3%1425
81.3%
297JaksaH 1.11 64-bit1761+21−2158.7%−71.419.8%865
74.4%
298Belzebub 0.671752+17−1748.5%+13.027.5%1326
64.0%
299DChess 1.0.21747+17−1747.0%+25.117.1%1414
61.1%
300Vapor 0.01r121744+19−1955.0%−33.940.0%917
76.5%
301ALChess 1.5b1734+19−1938.8%+93.018.5%1117
71.6%
302Storm 0.61726+18−1845.1%+40.615.7%1376
58.7%
303IQ231723+20−2049.7%+2.235.8%824
75.2%
304MSCP 1.441715+17−1745.5%+35.718.6%1401
99.9%
305Zotron 4.4.61675+18−1845.3%+38.325.6%1164
72.2%
306Needle 0.5311668+17−1841.0%+67.423.8%1310
74.0%
307Rocinante 1.01 64-bit1660+18−1842.3%+61.819.3%1267
64.8%
308Damas 91655+21−2147.8%+15.516.6%881
90.5%
309Larsen VB 0.05.00011636+19−1940.4%+75.618.9%1097
79.7%
310mACE 0.2.2.6161624+24−2440.9%+69.418.0%700
93.7%
311SharpChess2 2.61599+21−2138.8%+95.39.1%991
65.5%
312Purple Haze 2.01593+19−2025.8%+225.919.8%1329
60.7%
313Exacto 0.d1589+22−2240.7%+68.623.0%771
56.1%
314Vajolet 0.4.11587+22−2336.7%+105.115.7%810
69.8%
315‑316Butterfly 0.41578+22−2235.4%+100.139.9%726
52.3%
315‑316Piranha 0.51578+19−1931.7%+154.614.1%1304
81.0%
317Tarrasch Toy Engine 0.9061565+21−2135.6%+114.117.7%904
68.7%
318APILChess 1.05r1b1558+23−2338.3%+92.119.2%745
100.0%
319MiniMardi 1.31480+21−2224.1%+217.715.9%1033
91.7%
320Numpty Omega1458+24−2522.8%+224.516.9%813
 

Results matrix

All engines (top 12, best versions only)
#NameElo1
Houdi
2
Critt
3
Stock
4
Rybka
5
IvanH
6
Strel
7
Komod
8
Naum
9
Spike
10
Deep
11
Hiarc
12
Deep
1Houdini 2.0c 64-bit 6CPU3408 55 − 35
+30−10=50
+3		36.5 − 23.5
+23−10=27
+2		242.5 − 168.5
+165−91=155
−9		69.5 − 36.5
+44−11=51
+7		 32.5 − 9.5
+27−4=11
+16		81.5 − 18.5
+68−5=27
+16		84.5 − 15.5
+72−3=25
−4		44.5 − 5.5
+39−0=11
+46		  
2Critter 1.4 64-bit 6CPU334835 − 55
+10−30=50
−3		 30.5 − 29.5
+16−15=29
+4		44 − 48
+19−23=50
−22		61 − 46
+28−13=66
+12		 57 − 35
+34−12=46
−47		59 − 18
+45−4=28
+23		62.5 − 17.5
+47−2=31
−18		   
3Stockfish 2.2.2 64-bit 6CPU334623.5 − 36.5
+10−23=27
−2		29.5 − 30.5
+15−16=29
−4		 37 − 23
+20−6=34
+59		56.5 − 49.5
+27−20=59
−6		 35 − 17
+22−4=26
−16		30 − 8
+23−1=14
+42		31.5 − 8.5
+24−1=15
−12		   
4Rybka 4.1 64-bit 6CPU3339168.5 − 242.5
+91−165=155
+9		48 − 44
+23−19=50
+22		23 − 37
+6−20=34
−59		 53 − 52
+21−20=64
−14		 31 − 11
+24−4=14
+52		77 − 23
+57−3=40
+30		74 − 26
+54−6=40
−40		   
5IvanHoe 9.46h 64-bit 6CPU332236.5 − 69.5
+11−44=51
−7		46 − 61
+13−28=66
−12		49.5 − 56.5
+20−27=59
+6		52 − 53
+20−21=64
+14		 66.5 − 38.5
+35−7=63
−10		61.5 − 42.5
+36−17=51
−41		74 − 32
+53−11=42
0		80.5 − 25.5
+64−9=33
+1		   
6Strelka 5.1 64-bit3236    38.5 − 66.5
+7−35=63
+10		 24.5 − 26.5
+10−12=29
−18		9.5 − 10.5
+5−6=9
−58		    
7Komodo 4 64-bit32279.5 − 32.5
+4−27=11
−16		35 − 57
+12−34=46
+47		17 − 35
+4−22=26
+16		11 − 31
+4−24=14
−52		42.5 − 61.5
+17−36=51
+41		26.5 − 24.5
+12−10=29
+18		 56.5 − 42.5
+38−24=37
+13		53 − 27
+35−9=36
+17		30.5 − 19.5
+19−8=23
−19		32 − 18
+21−7=22
−9		 
8Naum 4.2 64-bit 4CPU319418.5 − 81.5
+5−68=27
−16		18 − 59
+4−45=28
−23		8 − 30
+1−23=14
−42		23 − 77
+3−57=40
−30		32 − 74
+11−53=42
0		10.5 − 9.5
+6−5=9
+58		42.5 − 56.5
+24−38=37
−13		 31.5 − 18.5
+20−7=23
+28		36.5 − 26.5
+23−13=27
0		31.5 − 18.5
+22−9=19
+19		28.5 − 21.5
+15−8=27
−26
9Spike 1.4 Leiden 4CPU314315.5 − 84.5
+3−72=25
+4		17.5 − 62.5
+2−47=31
+18		8.5 − 31.5
+1−24=15
+12		26 − 74
+6−54=40
+40		25.5 − 80.5
+9−64=33
−1		 27 − 53
+9−35=36
−17		18.5 − 31.5
+7−20=23
−28		 24.5 − 25.5
+14−15=21
−7		28 − 22
+18−12=20
+23		 
10Deep Shredder 12 64-bit OA On 4CPU31425.5 − 44.5
+0−39=11
−46		     19.5 − 30.5
+8−19=23
+19		26.5 − 36.5
+13−23=27
0		25.5 − 24.5
+15−14=21
+7		 23 − 27
+8−12=30
−34		25.5 − 24.5
+16−15=19
−10
11Hiarcs 13.2 4CPU3129      18 − 32
+7−21=22
+9		18.5 − 31.5
+9−22=19
−19		22 − 28
+12−18=20
−23		27 − 23
+12−8=30
+34		  
12Deep Fritz 12 4CPU3126       21.5 − 28.5
+8−15=27
+26		 24.5 − 25.5
+15−16=19
+10		  
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
Hou
2
Cri
3
Sto
4
Ryb
5
Iva
6
Str
7
Kom
8
Nau
9
Spi
10
Dee
11
Hia
12
Dee
1Houdini 2.0c 64-bit 6CPU3408 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Critter 1.4 64-bit 6CPU33480.0 56.884.599.4100.0100.0100.0100.0100.0100.0100.0
3Stockfish 2.2.2 64-bit 6CPU33460.043.2 74.998.0100.0100.0100.0100.0100.0100.0100.0
4Rybka 4.1 64-bit 6CPU33390.015.525.1 96.2100.0100.0100.0100.0100.0100.0100.0
5IvanHoe 9.46h 64-bit 6CPU33220.00.62.03.8 100.0100.0100.0100.0100.0100.0100.0
6Strelka 5.1 64-bit32360.00.00.00.00.0 81.3100.0100.0100.0100.0100.0
7Komodo 4 64-bit32270.00.00.00.00.018.7 100.0100.0100.0100.0100.0
8Naum 4.2 64-bit 4CPU31940.00.00.00.00.00.00.0 100.0100.0100.0100.0
9Spike 1.4 Leiden 4CPU31430.00.00.00.00.00.00.00.0 54.194.488.8
10Deep Shredder 12 64-bit OA On 4CPU31420.00.00.00.00.00.00.00.045.9 95.589.3
11Hiarcs 13.2 4CPU31290.00.00.00.00.00.00.00.05.64.5 58.2
12Deep Fritz 12 4CPU31260.00.00.00.00.00.00.00.011.210.741.8 
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

All games are compressed with 7-zip.

All games, without comments

868'392 games (172.72 MB)

Selection of games
(Please don't use aggressive download managers)

Various statistics

Created in 2005-2008 by CCRL team
Last games added on May 5, 2012