CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Engine Details

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Critter 1.01 64-bit in CCRL 40/40, 2017-11-18
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, 2005-2017, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Critter 1.01 64-bit has no rank with rating of 3050 Elo points (+23 -23),
based on 560 games: 174 wins, 127 losses and 259 draws
Score: 54.2%, Average opponent: −28.9, Draws: 46.3%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Houdini 1.5a 64-bit               3119  16.5-27.5  (+8 -19=17)    0.0   -11
 - Rybka 4.1 64-bit                  3081   7.0-13.0  (+1 -7 =12)    0.8   -52
 - Rybka 4 64-bit                    3079  13.5-14.5  (+6 -7 =15)    1.2   +18
 - Stockfish 2.1.1 64-bit            3060  66.0-73.0  (+27-34=78)   22.5    -4
 - Komodo 2.03 64-bit                3051   7.0-9.0   (+3 -5 =8 )   47.5   -40
 - Rybka 3 64-bit                    3050  11.5-12.5  (+5 -6 =13)   48.1    -9
 - Komodo 2.01 64-bit                3046  30.5-34.5  (+13-17=35)   58.9   -22
 - Stockfish 1.9.1 64-bit            3038  13.5-14.5  (+6 -7 =15)   76.5   -22
 - Stockfish 2.0.1 64-bit            3034   2.0-2.0   (+1 -1 =2 )   83.6   -16
 - Naum 4.2 64-bit                   2979  18.5-9.5   (+13-4 =11)  100.0   +28
 - Komodo 1.3 64-bit                 2977  18.5-9.5   (+12-3 =13)  100.0   +26
 - Deep Shredder 12 64-bit           2942  13.0-7.0   (+9 -3 =8 )  100.0   -14
 - Shredder 12 32-bit                2930  17.0-7.0   (+13-3 =8 )  100.0   +17
 - Gull 1.2 64-bit                   2920  30.0-14.0  (+23-7 =14)  100.0    -7
 - Spike 1.4 Leiden                  2920  19.0-5.0   (+16-2 =6 )  100.0   +83
 - Protector 1.4.0 64-bit            2904  20.0-4.0   (+18-2 =4 )  100.0  +122


Created in 2005-2013 by CCRL team
Last games added on November 18, 2017