CCRL 40/40
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 795'341 games
played by 2'045 programs
110322 CPU days (X2 4600+)

White wins: 272'710 (34.3%)
Black wins: 201'857 (25.4%)
Draws: 320'774 (40.3%)
White score: 54.5%

Engine Details

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Show each game results
Stockfish 2.3.1 64-bit in CCRL 40/40, 2018-02-17
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, 2005-2018, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Stockfish 2.3.1 64-bit has no rank with rating of 3081 Elo points (+17 -17),
based on 1065 games: 318 wins, 167 losses and 580 draws
Score: 57.1%, Average opponent: −43.3, Draws: 54.5%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 3 64-bit                   3162  11.5-14.5  (+4 -7 =15)    0.0   +48
 - Houdini 3 Tactical 64-bit          3157  14.0-18.0  (+3 -7 =22)    0.0   +40
 - Houdini 2.0c 64-bit                3128   2.5-5.5   (+1 -4 =3 )    0.0   -72
 - Komodo 5 64-bit                    3113  20.0-28.0  (+7 -15=26)    0.1   -15
 - Strelka 5.5 64-bit                 3108  20.0-32.0  (+4 -16=32)    0.2   -38
 - Critter 1.6a 64-bit                3104  29.0-31.0  (+10-12=38)    0.6   +15
 - Critter 1.4 64-bit                 3085   3.5-4.5   (+2 -3 =3 )   37.7   -38
 - Rybka 4.1 64-bit                   3082  24.5-23.5  (+11-10=27)   48.8    +7
 - Rybka 4 64-bit                     3080   2.0-6.0   (+1 -5 =2 )   52.9  -181
 - Stockfish 2.2.2 64-bit             3076   3.5-4.5   (+1 -2 =5 )   65.4   -41
 - Bouquet 1.5 64-bit                 3066  32.5-25.5  (+16-9 =33)   90.9   +17
 - IvanHoe 9.46h 64-bit               3065  30.0-22.0  (+14-6 =32)   94.1   +27
 - RobboLito 0.21Q 64-bit             3062  23.5-16.5  (+12-5 =23)   95.3   +33
 - Bouquet 1.6 64-bit                 3054  21.0-25.0  (+9 -13=24)   99.0   -53
 - Vitruvius 1.11C 64-bit             3053  21.0-17.0  (+12-8 =18)   99.6    +5
 - DeepSaros 3.3b 64-bit              3049  16.0-16.0  (+8 -8 =16)   99.5   -30
 - BlackMamba 1.4 64-bit              3030  16.5-13.5  (+8 -5 =17)  100.0   -22
 - Sting SF 2 64-bit                  3026  49.5-32.5  (+21-4 =57)  100.0     0
 - BlackMamba 1.2c 64-bit             3003  11.0-5.0   (+7 -1 =8 )  100.0   +33
 - Gull II b2 64-bit                  2997  31.5-24.5  (+15-8 =33)  100.0   -46
 - BlackMamba 1.2b 64-bit             2991   2.5-1.5   (+1 -0 =3 )  100.0   -30
 - Protector 1.5.0 64-bit             2989  24.0-10.0  (+16-2 =16)  100.0   +35
 - Gull R375 64-bit                   2988  23.5-10.5  (+15-2 =17)  100.0   +21
 - Gull II 64-bit                     2987   3.0-4.0   (+1 -2 =4 )  100.0  -125
 - Chiron 1.1a 64-bit                 2982   1.0-1.0   (+0 -0 =2 )  100.0   -99
 - Naum 4.2 64-bit                    2980  27.5-14.5  (+17-4 =21)  100.0   -10
 - Chiron 1.5 64-bit                  2969  24.0-10.0  (+15-1 =18)  100.0    +7
 - Hannibal 1.3 64-bit                2965  23.0-7.0   (+17-1 =12)  100.0   +58
 - Hiarcs 14                          2963  20.0-12.0  (+12-4 =16)  100.0   -42
 - Fritz 13                           2963   5.0-3.0   (+2 -0 =6 )  100.0   -54
 - DeepSaros 3.1a 64-bit              2955  28.0-8.0   (+22-2 =12)  100.0   +64
 - Deep Junior 13.3 64-bit            2924  23.5-6.5   (+18-1 =11)  100.0   +33
 - Spike 1.4 Leiden                   2920   4.0-0.0   (+4 -0 =0 )  100.0  +INF
 - Quazar 0.4 64-bit                  2906   7.5-0.5   (+7 -0 =1 )  100.0  +235
 - Protector 1.4.0 64-bit             2906   2.5-1.5   (+1 -0 =3 )  100.0  -107
 - MinkoChess 1.3 64-bit              2856   6.0-2.0   (+4 -0 =4 )  100.0   -74


Created in 2005-2013 by CCRL team
Last games added on February 17, 2018