CCRL 40/40
Downloads and Statistics
July 11, 2019
Testing summary:
Total: 1'066'603 games
played by 2'494 programs
145750 CPU days (X2 4600+)

White wins: 370'641 (34.7%)
Black wins: 275'905 (25.9%)
Draws: 420'057 (39.4%)
White score: 54.4%

Engine Details

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Critter 1.4 64-bit in CCRL 40/40, 2019-07-11
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:
Critter 1.4 64-bit has no rank with rating of 3081 Elo points (+20 -20),
based on 774 games: 226 wins, 140 losses and 408 draws
Score: 55.6%, Average opponent: −37.5, Draws: 52.7%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 3 64-bit                   3158   6.5-17.5  (+2 -13=9 )    0.0   -74
 - Houdini 2.0c 64-bit                3124   2.5-7.5   (+0 -5 =5 )    0.0  -105
 - Houdini 1.5a 64-bit                3110  24.0-26.0  (+7 -9 =34)    0.4   +17
 - Komodo 5 64-bit                    3108  25.0-33.0  (+10-18=30)    0.7   -11
 - Strelka 5.5 64-bit                 3103  15.5-19.5  (+5 -9 =21)    1.6    -7
 - Critter 1.6a 64-bit                3101   3.5-4.5   (+0 -1 =7 )    3.2   -11
 - Komodo 4 64-bit                    3098  32.0-39.0  (+12-19=40)    6.4   -12
 - Rybka 4.1 64-bit                   3078  26.5-32.5  (+10-16=33)   62.4   -29
 - Rybka 4 64-bit                     3077   4.0-4.0   (+2 -2 =4 )   65.0    +1
 - Stockfish 2.3.1 64-bit             3077   4.5-3.5   (+3 -2 =3 )   60.8   +38
 - Stockfish 2.2.2 64-bit             3072  20.0-18.0  (+5 -3 =30)   74.5    +5
 - Stockfish 2.2 64-bit               3063  10.0-14.0  (+3 -7 =14)   81.6   -62
 - IvanHoe 9.46h 64-bit               3061  19.5-18.5  (+8 -7 =23)   95.5    -9
 - Stockfish 2.1.1 64-bit             3053  31.0-19.0  (+18-6 =26)   98.9   +44
 - Vitruvius 1.11C 64-bit             3049  13.0-10.0  (+6 -3 =14)   99.6    +3
 - Rybka 3 64-bit                     3047  13.5-10.5  (+8 -5 =11)   99.8    +4
 - DeepSaros 3.0 64-bit               3035  21.5-14.5  (+11-4 =21)   99.9    +9
 - Chiron 1.1a 64-bit                 2979  17.0-11.0  (+6 -0 =22)  100.0   -47
 - Naum 4.2 64-bit                    2976  41.5-10.5  (+31-0 =21)  100.0   +89
 - Fritz 13                           2960   4.5-3.5   (+2 -1 =5 )  100.0   -84
 - Deep Shredder 12 64-bit            2940   9.5-4.5   (+7 -2 =5 )  100.0   -25
 - Gull 1.2 64-bit                    2919  26.0-4.0   (+24-2 =4 )  100.0  +153
 - Hannibal 1.2 64-bit                2916   3.0-1.0   (+3 -1 =0 )  100.0   +61
 - Spike 1.4 Leiden                   2915  20.5-7.5   (+15-2 =11)  100.0   -15
 - Quazar 0.4 64-bit                  2905   5.0-1.0   (+4 -0 =2 )  100.0   +55
 - Protector 1.4.0 64-bit             2903   3.5-2.5   (+2 -1 =3 )  100.0  -118
 - Spark 1.0 64-bit                   2893  24.0-6.0   (+20-2 =8 )  100.0   +31
 - MinkoChess 1.3 64-bit              2854   3.0-1.0   (+2 -0 =2 )  100.0   -76


Created in 2005-2013 by CCRL team
Last games added on July 11, 2019