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 0.90 64-bit 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 0.90 64-bit has no rank with rating of 3042 Elo points (+24 -23),
based on 581 games: 240 wins, 98 losses and 243 draws
Score: 62.2%, Average opponent: −79.5, Draws: 41.8%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 1.5a 64-bit                3120   8.0-16.0  (+3 -11=10)    0.0   -27
 - Rybka 4.1 64-bit                   3082   7.5-16.5  (+3 -12=9 )    0.1   -81
 - Rybka 4 64-bit                     3080  15.0-25.0  (+8 -18=14)    0.1   -45
 - NirvanaChess 2.2 64-bit            3067   0.5-1.5   (+0 -1 =1 )    3.8  -132
 - Protector 1.9.0 64-bit             3064   0.5-1.5   (+0 -1 =1 )    4.4  -120
 - Elektro 1.2 64-bit                 3045   1.0-1.0   (+0 -0 =2 )   42.7    +3
 - Hannibal 1.5 64-bit                3043   1.0-1.0   (+0 -0 =2 )   46.4    +1
 - Andscacs 0.84 64-bit               3042   0.0-2.0   (+0 -2 =0 )   49.0  -INF
 - Stockfish 1.9.1 64-bit             3039  22.5-17.5  (+9 -4 =27)   57.6   +27
 - Stockfish 2.0.1 64-bit             3034  19.5-20.5  (+10-11=19)   68.6   -13
 - Naum 4.6 64-bit                    3018   1.5-0.5   (+1 -0 =1 )   96.1  +133
 - Chiron 2 64-bit                    3017   1.0-1.0   (+1 -1 =0 )   96.4   -25
 - Texel 1.05 64-bit                  3012   0.5-1.5   (+0 -1 =1 )   98.1  -187
 - Naum 4.2 64-bit                    2980  23.5-16.5  (+16-9 =15)  100.0    -8
 - Komodo 1.3 64-bit                  2978  22.0-18.0  (+12-8 =20)  100.0   -33
 - Alfil 15.8 64-bit                  2964   1.0-1.0   (+0 -0 =2 )  100.0   -78
 - Fizbo 1.5 64-bit                   2959   1.5-0.5   (+1 -0 =1 )  100.0   +74
 - Hakkapeliitta 3.0 64-bit           2957   1.0-1.0   (+0 -0 =2 )  100.0   -85
 - Deep Shredder 12 64-bit            2943  25.5-8.5   (+18-1 =15)  100.0   +57
 - Shredder 12 32-bit                 2930  15.5-8.5   (+11-4 =9 )  100.0   -18
 - Cheng 4.39 64-bit                  2922   1.5-0.5   (+1 -0 =1 )  100.0   +37
 - Gull 1.2 64-bit                    2921  10.5-5.5   (+8 -3 =5 )  100.0   -18
 - Spike 1.4 Leiden                   2920  11.5-4.5   (+9 -2 =5 )  100.0   +25
 - SmarThink 1.70 64-bit              2920   1.5-0.5   (+1 -0 =1 )  100.0   +35
 - Vajolet2 2.0 64-bit                2919   0.5-1.5   (+0 -1 =1 )  100.0  -265
 - Gull 0.12a 64-bit                  2911  20.5-3.5   (+17-0 =7 )  100.0  +125
 - Gull 1.1 64-bit                    2910  12.5-3.5   (+9 -0 =7 )  100.0   +46
 - Protector 1.4.0 64-bit             2906  12.5-3.5   (+11-2 =3 )  100.0   +81
 - Hiarcs 13.2                        2901  17.0-6.0   (+12-1 =10)  100.0   +12
 - Komodo 1.2 32-bit                  2897  15.5-8.5   (+10-3 =11)  100.0   -53
 - Spark 1.0 64-bit                   2895  10.5-5.5   (+6 -1 =9 )  100.0   -57
 - Hiarcs 13.1                        2875  19.5-4.5   (+15-0 =9 )  100.0   +43
 - Thinker 5.4c Inert 64-bit          2861  19.0-5.0   (+14-0 =10)  100.0    +8
 - Zappa Mexico II 64-bit             2858  19.5-4.5   (+16-1 =7 )  100.0   +40
 - Protector 1.3.6 64-bit             2851  21.0-3.0   (+18-0 =6 )  100.0   +96


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