CCRL 40/40
Downloads and Statistics
April 14, 2018
Testing summary:
Total: 819'589 games
played by 2'137 programs
114281 CPU days (X2 4600+)

White wins: 281'160 (34.3%)
Black wins: 208'166 (25.4%)
Draws: 330'263 (40.3%)
White score: 54.5%

Engine Details

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Critter 1.4 64-bit 4CPU in CCRL 40/40, 2018-04-14
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 1.4 64-bit 4CPU has no rank with rating of 3146 Elo points (+19 -19),
based on 807 games: 273 wins, 97 losses and 437 draws
Score: 60.9%, Average opponent: −66.2, Draws: 54.2%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 2.0c 64-bit 4CPU           3199  26.5-33.5  (+9 -16=35)    0.0   +21
 - Stockfish 2.2.2 64-bit 4CPU        3152  25.5-32.5  (+10-17=31)   33.7   -28
 - Rybka 4.1 64-bit 4CPU              3150  56.5-51.5  (+25-20=63)   37.4   +15
 - Laser 1.5 64-bit 4CPU              3148   7.5-8.5   (+3 -4 =9 )   45.3   -14
 - Vitruvius 1.11C 64-bit 4CPU        3123  17.5-14.5  (+6 -3 =23)   97.4     0
 - IvanHoe 9.46h 64-bit 4CPU          3118  27.0-27.0  (+7 -7 =40)   99.3   -27
 - Strelka 5.5 64-bit                 3107  18.5-11.5  (+8 -1 =21)  100.0   +22
 - Komodo 4 64-bit                    3102  18.0-14.0  (+9 -5 =18)  100.0    -8
 - Naum 4.2 64-bit 4CPU               3065  67.5-36.5  (+38-7 =59)  100.0    +3
 - Chiron 1.1a 64-bit 4CPU            3045  20.0-12.0  (+11-3 =18)  100.0   -30
 - Deep Junior 13 64-bit 4CPU         3031  26.0-6.0   (+20-0 =12)  100.0   +94
 - Deep Shredder 12 64-bit 4CPU       3022  36.0-15.0  (+24-3 =24)  100.0    +3
 - Spike 1.4 Leiden 4CPU              3021  37.0-16.0  (+26-5 =22)  100.0     0
 - Hiarcs 13.2 4CPU                   2986  24.0-8.0   (+17-1 =14)  100.0    -2
 - Protector 1.4.0 64-bit 4CPU        2986  25.5-6.5   (+20-1 =11)  100.0   +41
 - Spark 1.0 64-bit 4CPU              2973  23.5-8.5   (+18-3 =11)  100.0   -15
 - Zappa Mexico II 64-bit 4CPU        2972  35.0-14.0  (+22-1 =26)  100.0   -50


Created in 2005-2013 by CCRL team
Last games added on April 14, 2018