CCRL 40/40
Downloads and Statistics
July 19, 2019
Testing summary:
Total: 1'068'538 games
played by 2'502 programs
146028 CPU days (X2 4600+)

White wins: 371'241 (34.7%)
Black wins: 276'263 (25.9%)
Draws: 421'034 (39.4%)
White score: 54.4%

Engine Details

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Show each game results
Stockfish 2.3.1 32-bit in CCRL 40/40, 2019-07-19
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 2.3.1 32-bit has no rank with rating of 3039 Elo points (+17 -17),
based on 1095 games: 350 wins, 192 losses and 553 draws
Score: 57.2%, Average opponent: −44.7, Draws: 50.5%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 3 32-bit                   3134  11.0-21.0  (+1 -11=20)    0.0    +6
 - Houdini 2.0c 32-bit                3102  15.0-17.0  (+8 -10=14)    0.0   +42
 - Houdini 1.5a 32-bit                3091  16.5-15.5  (+9 -8 =15)    0.0   +62
 - Strelka 5.5 32-bit                 3087  11.0-21.0  (+3 -13=16)    0.0   -44
 - Strelka 5.1 32-bit                 3083  18.5-13.5  (+10-5 =17)    0.0   +88
 - Critter 1.6a 32-bit                3067  14.5-17.5  (+4 -7 =21)    0.7    +2
 - Komodo 5 32-bit                    3046  29.5-34.5  (+9 -14=41)   25.7   -14
 - Rybka 4.1 32-bit                   3030  16.0-16.0  (+10-10=12)   82.1   -10
 - Vitruvius 1.11C 32-bit             3029  17.0-15.0  (+10-8 =14)   82.5    +9
 - IvanHoe 9.46h 32-bit               3023  16.5-15.5  (+7 -6 =19)   93.8    -6
 - DeepSaros 2.3j 32-bit              3020  15.5-16.5  (+6 -7 =19)   95.5   -28
 - Bouquet 1.6 32-bit                 3016  15.0-15.0  (+7 -7 =16)   97.2   -24
 - RobboLito 0.21Q 32-bit             3013  15.5-14.5  (+4 -3 =23)   98.5   -14
 - Bouquet 1.5 32-bit                 3010  18.5-13.5  (+10-5 =17)   99.3   +19
 - Sting SF 2 32-bit                  3002  21.5-10.5  (+13-2 =17)   99.9   +66
 - DeepSaros 3.0 32-bit               2998  35.5-28.5  (+20-13=31)  100.0    -8
 - Gull II b2 32-bit                  2981  38.5-25.5  (+19-6 =39)  100.0    -2
 - Gull II 32-bit                     2978  17.5-14.5  (+9 -6 =17)  100.0   -35
 - Hiarcs 14                          2961  22.0-10.0  (+16-4 =12)  100.0   +43
 - Fritz 13                           2960  17.0-15.0  (+9 -7 =16)  100.0   -60
 - Naum 4.2 32-bit                    2958  19.0-13.0  (+11-5 =16)  100.0   -25
 - Protector 1.5.0 32-bit             2947  20.5-8.5   (+13-1 =15)  100.0   +29
 - Deep Sjeng c't 2010                2941  20.5-11.5  (+14-5 =13)  100.0    -6
 - Chiron 1.5 32-bit                  2938  18.5-13.5  (+9 -4 =19)  100.0   -59
 - Chiron 1.1a 32-bit                 2928  23.0-9.0   (+18-4 =10)  100.0   +38
 - Hannibal 1.3 32-bit                2928  10.0-4.0   (+8 -2 =4 )  100.0   +40
 - Shredder 12 32-bit                 2928  42.5-21.5  (+31-10=23)  100.0    -3
 - Spike 1.4 Leiden                   2915  23.0-9.0   (+15-1 =16)  100.0    +7
 - Rybka 2.3.2a 32-bit                2912  22.0-10.0  (+14-2 =16)  100.0   -16
 - Hannibal 1.2 32-bit                2904  23.0-9.0   (+16-2 =14)  100.0    +2
 - Quazar 0.4 32-bit                  2879  22.5-9.5   (+17-4 =11)  100.0   -25


Created in 2005-2013 by CCRL team
Last games added on July 19, 2019