CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Engine Details

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Stockfish 2.2.2 64-bit 4CPU in CCRL 40/40, 2017-11-18
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, 2005-2017, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Stockfish 2.2.2 64-bit 4CPU has no rank with rating of 3154 Elo points (+16 -16),
based on 1121 games: 369 wins, 155 losses and 597 draws
Score: 59.5%, Average opponent: −58.9, Draws: 53.3%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Houdini 3 64-bit 4CPU             3238  10.5-18.5  (+3 -11=15)    0.0    +3
 - Houdini 2.0c 64-bit 4CPU          3201  31.0-37.0  (+15-21=32)    0.0   +17
 - Critter 1.6a 64-bit 4CPU          3168  25.0-35.0  (+7 -17=36)    5.7   -32
 - Houdini 3 64-bit                  3162  15.5-16.5  (+7 -8 =17)   21.5    -1
 - Rybka 4 64-bit 4CPU               3155  15.0-17.0  (+5 -7 =20)   46.1   -18
 - Critter 1.2 64-bit 4CPU           3152  16.0-16.0  (+5 -5 =22)   55.0    -2
 - Rybka 4.1 64-bit 4CPU             3151  40.0-34.0  (+19-13=42)   60.1   +21
 - Critter 1.4 64-bit 4CPU           3149  32.5-25.5  (+17-10=31)   65.3   +29
 - Vitruvius 1.11C 64-bit 4CPU       3125  23.5-20.5  (+7 -4 =33)   99.6   -11
 - IvanHoe 9.46h 64-bit 4CPU         3120  37.0-30.0  (+13-6 =48)   99.9    -5
 - Komodo 5 64-bit                   3113  27.5-14.5  (+18-5 =19)  100.0   +53
 - Strelka 5.5 64-bit                3107  30.0-12.0  (+21-3 =18)  100.0   +88
 - Komodo 4 64-bit                   3103  32.5-23.5  (+13-4 =39)  100.0    -8
 - Naum 4.2 64-bit 4CPU              3068  32.5-19.5  (+21-8 =23)  100.0    -8
 - Hiarcs 14 4CPU                    3061  21.0-15.0  (+10-4 =22)  100.0   -46
 - Chiron 1.1a 64-bit 4CPU           3047  22.5-11.5  (+16-5 =13)  100.0    -5
 - Deep Fritz 13 4CPU                3041  24.5-11.5  (+16-3 =17)  100.0    -1
 - Deep Junior 13 64-bit 4CPU        3033  45.5-20.5  (+31-6 =29)  100.0    -2
 - Deep Junior 13.3 64-bit 4CPU      3027  30.0-14.0  (+22-6 =16)  100.0    -6
 - Spike 1.4 Leiden 4CPU             3024  34.5-17.5  (+21-4 =27)  100.0   -31
 - Deep Shredder 12 64-bit 4CPU      3024  35.0-16.0  (+22-3 =26)  100.0   -17
 - Protector 1.4.0 64-bit 4CPU       2990  24.0-6.0   (+19-1 =10)  100.0   +43
 - Hiarcs 13.2 4CPU                  2988  23.5-6.5   (+17-0 =13)  100.0   +15
 - Spark 1.0 64-bit 4CPU             2976   1.5-0.5   (+1 -0 =1 )  100.0   -20
 - Zappa Mexico II 64-bit 4CPU       2973  37.0-15.0  (+23-1 =28)  100.0   -54


Created in 2005-2013 by CCRL team
Last games added on November 18, 2017