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 0.70 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 0.70 64-bit has no rank with rating of 2918 Elo points (+28 -27),
based on 408 games: 130 wins, 97 losses and 181 draws
Score: 54.0%, Average opponent: −25.5, Draws: 44.4%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Rybka 4 64-bit                    3079   6.0-18.0  (+2 -14=8 )    0.0    -7
 - Stockfish 1.7.1 64-bit            3010   8.5-15.5  (+3 -10=11)    0.0    +4
 - ChessBrainVB 3.50                 2982   4.0-6.0   (+2 -4 =4 )    0.0     0
 - Naum 4.2 64-bit                   2979   7.0-17.0  (+2 -12=10)    0.0   -74
 - SmarThink 1.80 64-bit             2940   5.5-4.5   (+3 -2 =5 )   12.7   +52
 - Crafty 25.2 64-bit                2937   5.0-5.0   (+3 -3 =4 )   13.0   +23
 - Rodent III 0.210 64-bit           2936   3.0-5.0   (+1 -3 =4 )   17.6   -50
 - Shredder 12 32-bit                2930  12.0-12.0  (+6 -6 =12)   21.3   +13
 - Fizbo 1.4 64-bit                  2929   5.0-5.0   (+3 -3 =4 )   27.9   +11
 - Komodo 1.0 64-bit                 2923  12.5-11.5  (+6 -5 =13)   37.6   +17
 - Hiarcs 13.1                       2874  13.5-10.5  (+8 -5 =11)   99.7    -5
 - Thinker 5.4c Inert 64-bit         2861  17.0-7.0   (+11-1 =12)  100.0   +68
 - Zappa Mexico II 64-bit            2858  12.0-12.0  (+5 -5 =14)  100.0   -63
 - Protector 1.3.4 64-bit            2841  16.0-8.0   (+9 -1 =14)  100.0   +16
 - Onno 1.2.70 64-bit                2837  14.5-9.5   (+8 -3 =13)  100.0   -18
 - Deep Sjeng WC2008 64-bit          2836  14.5-9.5   (+10-5 =9 )  100.0   -14
 - Spark 0.3 64-bit                  2835  14.0-10.0  (+9 -5 =10)  100.0   -27
 - Deep Junior 11.2 64-bit           2829  15.0-9.0   (+11-5 =8 )  100.0    -3
 - Grapefruit 1.0 32-bit             2826  16.5-7.5   (+12-3 =9 )  100.0   +30
 - Twisted Logic 20100131x 64-bit    2764  19.0-5.0   (+16-2 =6 )  100.0   +57


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