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 1.2 64-bit 4CPU 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 1.2 64-bit 4CPU has no rank with rating of 3152 Elo points (+20 -20),
based on 762 games: 247 wins, 112 losses and 403 draws
Score: 58.9%, Average opponent: −55.2, Draws: 52.9%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 2.0c 64-bit 4CPU           3200  18.5-32.5  (+8 -22=21)    0.0   -36
 - Houdini 1.5a 64-bit 4CPU           3193  17.0-15.0  (+9 -7 =16)    0.2   +59
 - Rybka 4 64-bit 4CPU                3155  67.5-67.5  (+28-28=79)   39.6    +3
 - Stockfish 2.2.2 64-bit 4CPU        3153  16.0-16.0  (+5 -5 =22)   45.1    +1
 - Rybka 4.1 64-bit 4CPU              3151  14.0-18.0  (+3 -7 =22)   52.6   -34
 - Stockfish 2.0.1 64-bit 4CPU        3134  17.5-14.5  (+6 -3 =23)   87.5    +5
 - Stockfish 2.1.1 64-bit 4CPU        3120  16.0-15.0  (+6 -5 =20)   97.3   -23
 - Komodo 5 64-bit                    3113  26.0-14.0  (+15-3 =22)  100.0   +48
 - Komodo 4 64-bit                    3103  53.5-38.5  (+26-11=55)  100.0    -3
 - Naum 4.2 64-bit 4CPU               3067  19.5-11.5  (+13-5 =13)  100.0     0
 - Komodo 2.03 64-bit                 3051  21.5-10.5  (+14-3 =15)  100.0    +4
 - Deep Junior 13 64-bit 4CPU         3033  20.5-9.5   (+14-3 =13)  100.0    -5
 - Deep Shredder 12 64-bit 4CPU       3024  23.0-9.0   (+16-2 =14)  100.0    +9
 - Spike 1.4 Leiden 4CPU              3023  22.5-9.5   (+14-1 =17)  100.0   -10
 - Deep Junior 12.5 64-bit 4CPU       3018  21.5-10.5  (+15-4 =13)  100.0   -23
 - Hiarcs 13.2 4CPU                   2987  26.0-6.0   (+21-1 =10)  100.0   +53
 - Spark 1.0 64-bit 4CPU              2975  22.0-10.0  (+14-2 =16)  100.0   -64
 - Zappa Mexico II 64-bit 4CPU        2973  26.0-6.0   (+20-0 =12)  100.0   +29


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