CCRL 40/40
Downloads and Statistics
September 21, 2019
Testing summary:
Total: 1'084'933 games
played by 2'536 programs
148136 CPU days (X2 4600+)

White wins: 376'624 (34.7%)
Black wins: 280'046 (25.8%)
Draws: 428'263 (39.5%)
White score: 54.5%

Engine Details

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Critter 1.4 64-bit 4CPU in CCRL 40/40, 2019-09-21
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 4CPU has no rank with rating of 3145 Elo points (+19 -19),
based on 843 games: 285 wins, 105 losses and 453 draws
Score: 60.7%, Average opponent: −64.9, Draws: 53.7%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 2.0c 64-bit 4CPU           3195  26.5-33.5  (+9 -16=35)    0.0   +18
 - Xiphos 0.3 64-bit 4CPU             3179  13.0-7.0   (+9 -3 =8 )    1.0  +131
 - Arasan 21.1 64-bit 4CPU            3167   7.0-9.0   (+3 -5 =8 )    9.4   -14
 - Stockfish 2.2.2 64-bit 4CPU        3147  25.5-32.5  (+10-17=31)   43.4   -32
 - Rybka 4.1 64-bit 4CPU              3145  56.5-51.5  (+25-20=63)   51.6   +11
 - Laser 1.5 64-bit 4CPU              3143   7.5-8.5   (+3 -4 =9 )   54.8   -18
 - Vitruvius 1.11C 64-bit 4CPU        3119  17.5-14.5  (+6 -3 =23)   98.7    -2
 - IvanHoe 9.46h 64-bit 4CPU          3114  27.0-27.0  (+7 -7 =40)   99.7   -30
 - Strelka 5.5 64-bit                 3104  18.5-11.5  (+8 -1 =21)  100.0   +20
 - Komodo 4 64-bit                    3098  18.0-14.0  (+9 -5 =18)  100.0   -11
 - Naum 4.2 64-bit 4CPU               3061  67.5-36.5  (+38-7 =59)  100.0     0
 - Chiron 1.1a 64-bit 4CPU            3040  20.0-12.0  (+11-3 =18)  100.0   -34
 - Deep Junior 13 64-bit 4CPU         3028  26.0-6.0   (+20-0 =12)  100.0   +92
 - Deep Shredder 12 64-bit 4CPU       3019  36.0-15.0  (+24-3 =24)  100.0    +1
 - Spike 1.4 Leiden 4CPU              3017  37.0-16.0  (+26-5 =22)  100.0    -2
 - Protector 1.4.0 64-bit 4CPU        2983  25.5-6.5   (+20-1 =11)  100.0   +39
 - Hiarcs 13.2 4CPU                   2982  24.0-8.0   (+17-1 =14)  100.0    -5
 - Zappa Mexico II 64-bit 4CPU        2970  35.0-14.0  (+22-1 =26)  100.0   -51
 - Spark 1.0 64-bit 4CPU              2970  23.5-8.5   (+18-3 =11)  100.0   -17


Created in 2005-2013 by CCRL team
Last games added on September 21, 2019