CCRL 40/40
Downloads and Statistics
October 12, 2019
Testing summary:
Total: 1'090'583 games
played by 2'551 programs
149018 CPU days (X2 4600+)

White wins: 378'348 (34.7%)
Black wins: 281'291 (25.8%)
Draws: 430'944 (39.5%)
White score: 54.4%

Engine Details

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Stockfish 2.3.1 64-bit in CCRL 40/40, 2019-10-12
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://ccrl.chessdom.com/ccrl/4040/

CCRL 40/40 main list:
Stockfish 2.3.1 64-bit has no rank with rating of 3078 Elo points (+17 -17),
based on 1065 games: 318 wins, 167 losses and 580 draws
Score: 57.1%, Average opponent: −43.7, Draws: 54.5%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 3 64-bit                   3158  11.5-14.5  (+4 -7 =15)    0.0   +47
 - Houdini 3 Tactical 64-bit          3153  14.0-18.0  (+3 -7 =22)    0.0   +39
 - Houdini 2.0c 64-bit                3124   2.5-5.5   (+1 -4 =3 )    0.0   -73
 - Komodo 5 64-bit                    3109  20.0-28.0  (+7 -15=26)    0.1   -16
 - Strelka 5.5 64-bit                 3104  20.0-32.0  (+4 -16=32)    0.2   -39
 - Critter 1.6a 64-bit                3101  29.0-31.0  (+10-12=38)    0.6   +15
 - Critter 1.4 64-bit                 3081   3.5-4.5   (+2 -3 =3 )   39.4   -39
 - Rybka 4.1 64-bit                   3078  24.5-23.5  (+11-10=27)   49.0    +6
 - Rybka 4 64-bit                     3077   2.0-6.0   (+1 -5 =2 )   53.2  -181
 - Stockfish 2.2.2 64-bit             3072   3.5-4.5   (+1 -2 =5 )   66.2   -42
 - Bouquet 1.5 64-bit                 3062  32.5-25.5  (+16-9 =33)   91.1   +16
 - IvanHoe 9.46h 64-bit               3062  30.0-22.0  (+14-6 =32)   94.2   +27
 - RobboLito 0.21Q 64-bit             3059  23.5-16.5  (+12-5 =23)   95.3   +33
 - Bouquet 1.6 64-bit                 3051  21.0-25.0  (+9 -13=24)   99.0   -53
 - Vitruvius 1.11C 64-bit             3049  21.0-17.0  (+12-8 =18)   99.6    +4
 - DeepSaros 3.3b 64-bit              3045  16.0-16.0  (+8 -8 =16)   99.6   -31
 - BlackMamba 1.4 64-bit              3027  16.5-13.5  (+8 -5 =17)  100.0   -22
 - Sting SF 2 64-bit                  3022  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   +36
 - Gull II b2 64-bit                  2994  31.5-24.5  (+15-8 =33)  100.0   -46
 - Gull R375 64-bit                   2988  23.5-10.5  (+15-2 =17)  100.0   +24
 - BlackMamba 1.2b 64-bit             2988   2.5-1.5   (+1 -0 =3 )  100.0   -30
 - Gull II 64-bit                     2986   3.0-4.0   (+1 -2 =4 )  100.0  -123
 - Protector 1.5.0 64-bit             2985  24.0-10.0  (+16-2 =16)  100.0   +34
 - Chiron 1.1a 64-bit                 2979   1.0-1.0   (+0 -0 =2 )  100.0   -99
 - Naum 4.2 64-bit                    2977  27.5-14.5  (+17-4 =21)  100.0   -10
 - Chiron 1.5 64-bit                  2965  24.0-10.0  (+15-1 =18)  100.0    +6
 - Hannibal 1.3 64-bit                2964  23.0-7.0   (+17-1 =12)  100.0   +60
 - Hiarcs 14                          2962  20.0-12.0  (+12-4 =16)  100.0   -40
 - Fritz 13                           2961   5.0-3.0   (+2 -0 =6 )  100.0   -53
 - DeepSaros 3.1a 64-bit              2945  28.0-8.0   (+22-2 =12)  100.0   +57
 - Deep Junior 13.3 64-bit            2919  23.5-6.5   (+18-1 =11)  100.0   +31
 - Spike 1.4 Leiden                   2915   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  +238
 - Protector 1.4.0 64-bit             2901   2.5-1.5   (+1 -0 =3 )  100.0  -109
 - MinkoChess 1.3 64-bit              2854   6.0-2.0   (+4 -0 =4 )  100.0   -73


Created in 2005-2013 by CCRL team
Last games added on October 12, 2019