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 2.2.2 64-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 2.2.2 64-bit has no rank with rating of 3072 Elo points (+20 -20),
based on 792 games: 234 wins, 162 losses and 396 draws
Score: 54.5%, Average opponent: −32.1, Draws: 50.0%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 3 64-bit                   3158   9.0-23.0  (+2 -16=14)    0.0   -48
 - Houdini 3 Tactical 64-bit          3153  13.0-17.0  (+5 -9 =16)    0.0   +43
 - Houdini 2.0c 64-bit                3124   5.5-8.5   (+3 -6 =5 )    0.0   -12
 - Houdini 1.5a 64-bit                3110  12.0-22.0  (+5 -15=14)    0.0   -56
 - Komodo 5 64-bit                    3108  30.5-42.5  (+9 -21=43)    0.0   -11
 - Strelka 5.5 64-bit                 3103  26.5-20.5  (+10-4 =33)    0.1   +65
 - Critter 1.6a 64-bit                3100  12.0-19.0  (+5 -12=14)    0.3   -41
 - Komodo 4 64-bit                    3098  14.5-20.5  (+6 -12=17)    1.1   -26
 - Critter 1.4 64-bit                 3081  18.0-20.0  (+3 -5 =30)   25.5    -5
 - Rybka 4.1 64-bit                   3078  23.0-25.0  (+10-12=26)   29.7    -5
 - Stockfish 2.3.1 64-bit             3077   4.5-3.5   (+2 -1 =5 )   33.9   +41
 - Rybka 4 64-bit                     3077   5.5-2.5   (+4 -1 =3 )   34.1  +126
 - IvanHoe 9.46h 64-bit               3061  23.5-22.5  (+9 -8 =29)   82.5    -7
 - Vitruvius 1.11C 64-bit             3049  17.0-18.0  (+6 -7 =22)   97.3   -29
 - Rybka 3 64-bit                     3047  13.0-11.0  (+6 -4 =14)   98.4    -3
 - DeepSaros 3.0 64-bit               3035  24.5-19.5  (+12-7 =25)   99.5    -4
 - Gull II b2 64-bit                  2993   5.0-3.0   (+3 -1 =4 )  100.0    -5
 - Chiron 1.1a 64-bit                 2978   5.5-0.5   (+5 -0 =1 )  100.0  +264
 - Naum 4.2 64-bit                    2976  20.0-9.0   (+14-3 =12)  100.0   +27
 - Hiarcs 14                          2961  20.5-11.5  (+15-6 =11)  100.0   -22
 - Fritz 13                           2960   4.0-4.0   (+2 -2 =4 )  100.0  -106
 - Deep Shredder 12 64-bit            2940   5.0-1.0   (+4 -0 =2 )  100.0   +99
 - Gull 1.2 64-bit                    2918  25.0-9.0   (+19-3 =12)  100.0    +4
 - Hannibal 1.2 64-bit                2916  10.5-1.5   (+9 -0 =3 )  100.0  +131
 - Spike 1.4 Leiden                   2915  29.0-7.0   (+24-2 =10)  100.0   +63
 - Quazar 0.4 64-bit                  2905   7.0-3.0   (+5 -1 =4 )  100.0   -39
 - Protector 1.4.0 64-bit             2903  10.5-3.5   (+8 -1 =5 )  100.0     0
 - Spark 1.0 64-bit                   2893  24.5-9.5   (+18-3 =13)  100.0   -34
 - MinkoChess 1.3 64-bit              2854  10.5-1.5   (+9 -0 =3 )  100.0   +69
 - Booot 5.1.0                        2843   3.0-1.0   (+2 -0 =2 )  100.0   -86


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