CCRL 40/40
Downloads and Statistics
December 9, 2017
Testing summary:
Total: 766'023 games
played by 1'997 programs
104955 CPU days (X2 4600+)

White wins: 262'896 (34.3%)
Black wins: 194'802 (25.4%)
Draws: 308'325 (40.3%)
White score: 54.4%

Engine Details

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Critter 0.52b 64-bit in CCRL 40/40, 2017-12-09
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 0.52b 64-bit has no rank with rating of 2806 Elo points (+31 -31),
based on 319 games: 96 wins, 95 losses and 128 draws
Score: 50.2%, Average opponent: −1.4, Draws: 40.1%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Stockfish 1.6.3 64-bit            2966   1.0-3.0   (+1 -3 =0 )    0.0   -66
 - Rybka 2.3.2a 64-bit               2964   0.0-3.0   (+0 -3 =0 )    0.0  -INF
 - Komodo 1.0 64-bit                 2923   0.5-2.5   (+0 -2 =1 )    0.0  -118
 - Arasan 18.2 64-bit                2888   6.0-4.0   (+2 -0 =8 )    0.0  +131
 - Thinker 5.4d Inert 64-bit         2863   8.5-18.5  (+3 -13=11)    0.1   -62
 - Zappa Mexico II 64-bit            2858   8.0-10.0  (+4 -6 =8 )    0.1   +18
 - Bobcat 7.1 64-bit                 2849   6.0-4.0   (+3 -1 =6 )    1.8  +102
 - Protector 1.3.3 64-bit            2843   9.5-14.5  (+4 -9 =11)    4.5   -26
 - Protector 1.3.4 64-bit            2841   0.0-3.0   (+0 -3 =0 )    4.1  -INF
 - Spark 0.3 64-bit                  2836   0.0-2.0   (+0 -2 =0 )    5.4  -INF
 - Deep Sjeng WC2008 64-bit          2836   6.5-11.5  (+2 -7 =9 )    4.0   -53
 - Grapefruit 1.0 32-bit             2826   1.0-2.0   (+0 -1 =2 )   11.0   -62
 - Deep Junior 11.1a 64-bit          2823  10.5-13.5  (+6 -9 =9 )   17.9   -20
 - Hiarcs 12.1                       2818   7.5-10.5  (+3 -6 =9 )   24.0   -42
 - Rhetoric 1.4.3 64-bit             2800   5.0-5.0   (+2 -2 =6 )   63.7    -6
 - Bright 0.5c                       2777   3.0-1.0   (+3 -1 =0 )   95.5  +197
 - Bright 0.4a                       2776  10.0-8.0   (+7 -5 =6 )   96.2    +6
 - Twisted Logic 20100131x 64-bit    2764  14.0-14.0  (+10-10=8 )   99.0   -40
 - SmarThink 1.20 64-bit             2763  15.0-9.0   (+9 -3 =12)   99.1   +29
 - SmarThink 1.20 32-bit             2747  12.5-5.5   (+11-4 =3 )  100.0   +89
 - Spike 1.2 Turin                   2746  14.5-7.5   (+11-4 =7 )  100.0   +43
 - Bison 9.11 32-bit                 2728   2.0-2.0   (+1 -1 =2 )  100.0   -78
 - Crafty 23.2 64-bit                2710  19.0-5.0   (+14-0 =10)  100.0   +92


Created in 2005-2013 by CCRL team
Last games added on December 9, 2017