CCRL 40/40
Downloads and Statistics
September 14, 2019
Testing summary:
Total: 1'083'337 games
played by 2'531 programs
147896 CPU days (X2 4600+)

White wins: 376'125 (34.7%)
Black wins: 279'699 (25.8%)
Draws: 427'513 (39.5%)
White score: 54.5%

Engine Details

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Stockfish 2.2.2 64-bit 4CPU in CCRL 40/40, 2019-09-14
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Stockfish 2.2.2 64-bit 4CPU has no rank with rating of 3147 Elo points (+16 -16),
based on 1141 games: 371 wins, 161 losses and 609 draws
Score: 59.2%, Average opponent: −56.0, Draws: 53.4%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Houdini 3 64-bit 4CPU             3232  10.5-18.5  (+3 -11=15)    0.0    +4
 - Houdini 2.0c 64-bit 4CPU          3195  31.0-37.0  (+15-21=32)    0.0   +18
 - Xiphos 0.3 64-bit 4CPU            3179   8.0-12.0  (+2 -6 =12)    1.0   -24
 - Critter 1.6a 64-bit 4CPU          3160  25.0-35.0  (+7 -17=36)    8.8   -33
 - Houdini 3 64-bit                  3159  15.5-16.5  (+7 -8 =17)   14.7    +2
 - Rybka 4 64-bit 4CPU               3148  15.0-17.0  (+5 -7 =20)   48.0   -18
 - Critter 1.2 64-bit 4CPU           3146  16.0-16.0  (+5 -5 =22)   53.6    -1
 - Critter 1.4 64-bit 4CPU           3145  32.5-25.5  (+17-10=31)   56.6   +32
 - Rybka 4.1 64-bit 4CPU             3145  40.0-34.0  (+19-13=42)   60.4   +22
 - Vitruvius 1.11C 64-bit 4CPU       3119  23.5-20.5  (+7 -4 =33)   99.6   -10
 - IvanHoe 9.46h 64-bit 4CPU         3114  37.0-30.0  (+13-6 =48)   99.9    -4
 - Komodo 5 64-bit                   3109  27.5-14.5  (+18-5 =19)  100.0   +56
 - Strelka 5.5 64-bit                3104  30.0-12.0  (+21-3 =18)  100.0   +92
 - Komodo 4 64-bit                   3099  32.5-23.5  (+13-4 =39)  100.0    -5
 - Naum 4.2 64-bit 4CPU              3062  32.5-19.5  (+21-8 =23)  100.0    -7
 - Hiarcs 14 4CPU                    3054  21.0-15.0  (+10-4 =22)  100.0   -46
 - Chiron 1.1a 64-bit 4CPU           3041  22.5-11.5  (+16-5 =13)  100.0    -4
 - Deep Fritz 13 4CPU                3035  24.5-11.5  (+16-3 =17)  100.0     0
 - Deep Junior 13 64-bit 4CPU        3028  45.5-20.5  (+31-6 =29)  100.0     0
 - Deep Junior 13.3 64-bit 4CPU      3019  30.0-14.0  (+22-6 =16)  100.0    -7
 - Deep Shredder 12 64-bit 4CPU      3019  35.0-16.0  (+22-3 =26)  100.0   -15
 - Spike 1.4 Leiden 4CPU             3017  34.5-17.5  (+21-4 =27)  100.0   -31
 - Hiarcs 13.2 4CPU                  2983  23.5-6.5   (+17-0 =13)  100.0   +17
 - Protector 1.4.0 64-bit 4CPU       2983  24.0-6.0   (+19-1 =10)  100.0   +43
 - Zappa Mexico II 64-bit 4CPU       2970  37.0-15.0  (+23-1 =28)  100.0   -50
 - Spark 1.0 64-bit 4CPU             2970   1.5-0.5   (+1 -0 =1 )  100.0   -19


Created in 2005-2013 by CCRL team
Last games added on September 14, 2019