CCRL 40/40
Downloads and Statistics
November 11, 2017
Testing summary:
Total: 754'213 games
played by 1'962 programs
103027 CPU days (X2 4600+)

White wins: 259'159 (34.4%)
Black wins: 192'263 (25.5%)
Draws: 302'791 (40.1%)
White score: 54.4%

Engine Details

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Critter 1.01 64-bit 4CPU in CCRL 40/40, 2017-11-11
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, 2005-2017, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Critter 1.01 64-bit 4CPU has no rank with rating of 3099 Elo points (+32 -32),
based on 279 games: 60 wins, 58 losses and 161 draws
Score: 50.4%, Average opponent: −3.2, Draws: 57.7%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Houdini 1.5a 64-bit 4CPU          3194   7.5-10.5  (+3 -6 =9 )    0.0   +42
 - Rybka 4 64-bit 4CPU               3155   6.5-11.5  (+1 -6 =11)    0.0   -21
 - Rybka 4.1 64-bit 4CPU             3152  17.5-24.5  (+3 -10=29)    0.1    +9
 - Sting SF 6 64-bit 4CPU            3141  11.5-8.5   (+6 -3 =11)    2.4   +87
 - Sting SF 4.8.4 64-bit 4CPU        3141   8.5-11.5  (+2 -5 =13)    2.6     0
 - Stockfish 2.0.1 64-bit 4CPU       3135   5.0-13.0  (+0 -8 =10)    3.7   -93
 - Vitruvius 1.11C 64-bit 4CPU       3126  10.5-7.5   (+7 -4 =7 )    6.4   +81
 - Naum 4.2 64-bit 4CPU              3068  11.0-7.0   (+4 -0 =14)   96.7   +22
 - Chiron 1.1a 64-bit 4CPU           3048  12.0-6.0   (+7 -1 =10)   99.7   +45
 - Spike 1.4 Leiden 4CPU             3025  34.0-27.0  (+17-10=34)  100.0   -40
 - Deep Shredder 12 64-bit 4CPU      3025  10.0-8.0   (+5 -3 =10)  100.0   -38
 - EXchess 7.88b 64-bit 4CPU         2965   6.5-3.5   (+5 -2 =3 )  100.0   -35


Created in 2005-2013 by CCRL team
Last games added on November 11, 2017