CCRL 40/40
Downloads and Statistics
January 20, 2018
Testing summary:
Total: 783'129 games
played by 2'026 programs
108312 CPU days (X2 4600+)

White wins: 268'533 (34.3%)
Black wins: 198'801 (25.4%)
Draws: 315'795 (40.3%)
White score: 54.5%

Engine Details

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Critter 1.4 64-bit 4CPU in CCRL 40/40, 2018-01-20
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 3148 Elo points (+19 -19),
based on 801 games: 272 wins, 96 losses and 433 draws
Score: 61.0%, Average opponent: −67.2, Draws: 54.1%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 2.0c 64-bit 4CPU           3200  26.5-33.5  (+9 -16=35)    0.0   +20
 - Laser 1.5 64-bit 4CPU              3156   4.5-5.5   (+2 -3 =5 )   35.0   -19
 - Stockfish 2.2.2 64-bit 4CPU        3153  25.5-32.5  (+10-17=31)   33.8   -29
 - Rybka 4.1 64-bit 4CPU              3151  56.5-51.5  (+25-20=63)   39.6   +14
 - Vitruvius 1.11C 64-bit 4CPU        3125  17.5-14.5  (+6 -3 =23)   97.3     0
 - IvanHoe 9.46h 64-bit 4CPU          3119  27.0-27.0  (+7 -7 =40)   99.3   -28
 - Strelka 5.5 64-bit                 3108  18.5-11.5  (+8 -1 =21)  100.0   +21
 - Komodo 4 64-bit                    3103  18.0-14.0  (+9 -5 =18)  100.0    -9
 - Naum 4.2 64-bit 4CPU               3067  67.5-36.5  (+38-7 =59)  100.0    +3
 - Chiron 1.1a 64-bit 4CPU            3046  20.0-12.0  (+11-3 =18)  100.0   -31
 - Deep Junior 13 64-bit 4CPU         3033  26.0-6.0   (+20-0 =12)  100.0   +94
 - Deep Shredder 12 64-bit 4CPU       3024  36.0-15.0  (+24-3 =24)  100.0    +3
 - Spike 1.4 Leiden 4CPU              3023  37.0-16.0  (+26-5 =22)  100.0     0
 - Protector 1.4.0 64-bit 4CPU        2989  25.5-6.5   (+20-1 =11)  100.0   +42
 - Hiarcs 13.2 4CPU                   2987  24.0-8.0   (+17-1 =14)  100.0    -3
 - Spark 1.0 64-bit 4CPU              2975  23.5-8.5   (+18-3 =11)  100.0   -15
 - Zappa Mexico II 64-bit 4CPU        2973  35.0-14.0  (+22-1 =26)  100.0   -51


Created in 2005-2013 by CCRL team
Last games added on January 20, 2018