CCRL 40/40
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 795'341 games
played by 2'045 programs
110322 CPU days (X2 4600+)

White wins: 272'710 (34.3%)
Black wins: 201'857 (25.4%)
Draws: 320'774 (40.3%)
White score: 54.5%

Engine Details

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Critter 0.70 64-bit in CCRL 40/40, 2018-02-17
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, 2005-2018, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Critter 0.70 64-bit has no rank with rating of 2919 Elo points (+27 -27),
based on 408 games: 130 wins, 97 losses and 181 draws
Score: 54.0%, Average opponent: −25.7, Draws: 44.4%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Rybka 4 64-bit                     3080   6.0-18.0  (+2 -14=8 )    0.0    -7
 - Stockfish 1.7.1 64-bit             3012   8.5-15.5  (+3 -10=11)    0.0    +5
 - ChessBrainVB 3.50                  2981   4.0-6.0   (+2 -4 =4 )    0.0    -1
 - Naum 4.2 64-bit                    2980   7.0-17.0  (+2 -12=10)    0.0   -74
 - SmarThink 1.80 64-bit              2941   5.5-4.5   (+3 -2 =5 )   12.6   +52
 - Rodent III 0.210 64-bit            2936   3.0-5.0   (+1 -3 =4 )   16.2   -52
 - Crafty 25.2 64-bit                 2934   5.0-5.0   (+3 -3 =4 )   16.8   +19
 - Fizbo 1.4 64-bit                   2931   5.0-5.0   (+3 -3 =4 )   27.5   +12
 - Shredder 12 32-bit                 2930  12.0-12.0  (+6 -6 =12)   21.3   +12
 - Komodo 1.0 64-bit                  2924  12.5-11.5  (+6 -5 =13)   38.0   +17
 - Hiarcs 13.1                        2875  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   +67
 - Zappa Mexico II 64-bit             2858  12.0-12.0  (+5 -5 =14)  100.0   -64
 - Protector 1.3.4 64-bit             2841  16.0-8.0   (+9 -1 =14)  100.0   +15
 - Onno 1.2.70 64-bit                 2838  14.5-9.5   (+8 -3 =13)  100.0   -18
 - Deep Sjeng WC2008 64-bit           2837  14.5-9.5   (+10-5 =9 )  100.0   -14
 - Spark 0.3 64-bit                   2836  14.0-10.0  (+9 -5 =10)  100.0   -27
 - Deep Junior 11.2 64-bit            2830  15.0-9.0   (+11-5 =8 )  100.0    -3
 - Grapefruit 1.0 32-bit              2827  16.5-7.5   (+12-3 =9 )  100.0   +30
 - Twisted Logic 20100131x 64-bit     2768  19.0-5.0   (+16-2 =6 )  100.0   +60


Created in 2005-2013 by CCRL team
Last games added on February 17, 2018