CCRL 40/4
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 2'143'600 games
played by 2'509 programs
29100 CPU days (X2 4600+)

White wins: 830'432 (38.7%)
Black wins: 670'629 (31.3%)
Draws: 642'539 (30.0%)
White score: 53.7%

Engine Details

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Critter 0.80 64-bit 4CPU in CCRL 40/4, 2019-12-07
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern CPU.
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

CCRL 40/4 main list:
Critter 0.80 64-bit 4CPU has no rank with rating of 3070 Elo points (+17 -17),
based on 1149 games: 440 wins, 242 losses and 467 draws
Score: 58.6%, Average opponent: −58.1, Draws: 40.6%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Rybka 4 64-bit 4CPU                3198  17.0-33.0  (+4 -20=26)    0.0   +30
 - Stockfish 2.0.1 64-bit 4CPU        3167  14.0-36.0  (+4 -26=20)    0.0   -46
 - Stockfish 1.9.1 64-bit 4CPU        3153  16.0-34.0  (+3 -21=26)    0.0   -23
 - Stockfish 1.8 64-bit 4CPU          3137  21.5-28.5  (+11-18=21)    0.0   +23
 - Naum 4.2 64-bit 4CPU               3099  24.0-25.0  (+13-14=22)    0.1   +23
 - Vajolet2 2.2 64-bit 4CPU           3068  27.0-24.0  (+14-11=26)   56.5   +15
 - Deep Shredder 12 64-bit 4CPU       3041  26.5-23.5  (+16-13=21)   99.9   -11
 - Hiarcs 13.2 4CPU                   3033  26.0-23.0  (+18-15=16)  100.0   -13
 - Spark 1.0 64-bit 4CPU              3028  25.0-25.0  (+14-14=22)  100.0   -42
 - Hiarcs 13.1 4CPU                   3009  30.0-20.0  (+18-8 =24)  100.0    +1
 - Spark 0.5 64-bit 4CPU              3000  30.5-19.5  (+19-8 =23)  100.0    -1
 - Deep Junior 12 64-bit 4CPU         2990  32.5-17.5  (+23-8 =19)  100.0   +16
 - Zappa Mexico II 64-bit 4CPU        2971  31.0-19.0  (+19-7 =24)  100.0   -25
 - Onno 1.2.70 64-bit 4CPU            2955  31.5-18.5  (+22-9 =19)  100.0   -28
 - Thinker 5.4c Inert 64-bit 4CPU     2952  37.0-13.0  (+27-3 =20)  100.0   +36
 - Protector 1.3.4 64-bit 4CPU        2952  34.0-16.0  (+25-7 =18)  100.0     0
 - Deep Junior 11.1a 64-bit 4CPU      2943  33.0-17.0  (+25-9 =16)  100.0   -17
 - Hiarcs 12 4CPU                     2941  35.5-14.5  (+26-5 =19)  100.0    +9
 - Deep Sjeng WC2008 64-bit 4CPU      2940  35.0-15.0  (+25-5 =20)  100.0     0
 - Hiarcs 12.1 4CPU                   2939  36.5-13.5  (+27-4 =19)  100.0   +19
 - Deep Sjeng 3.0 64-bit 4CPU         2930  38.0-12.0  (+30-4 =16)  100.0   +39
 - Deep Junior 11.2 64-bit 4CPU       2924  36.0-14.0  (+29-7 =14)  100.0    +6
 - Toga II 1.4 beta5c 4CPU            2904  36.0-14.0  (+28-6 =16)  100.0   -16


Created in 2005-2013 by CCRL team
Last games added on December 7, 2019