CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Engine Details

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EXchess 7.51b 64-bit 4CPU in CCRL 40/40, 2017-11-18
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:
EXchess 7.51b 64-bit 4CPU has no rank with rating of 2941 Elo points (+35 -35),
based on 244 games: 69 wins, 61 losses and 114 draws
Score: 51.6%, Average opponent: −9.0, Draws: 46.7%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Fizbo 1.7 64-bit 4CPU             3126   2.5-7.5   (+1 -6 =3 )    0.0    +9
 - Andscacs 0.80 64-bit 4CPU         3030   2.5-1.5   (+2 -1 =1 )    0.0  +184
 - Deep Junior 13.3 64-bit 4CPU      3027   2.5-1.5   (+1 -0 =3 )    0.0  +145
 - Spike 1.4 Leiden 4CPU             3024   0.5-3.5   (+0 -3 =1 )    0.0  -199
 - Cheng4 0.38 64-bit 4CPU           2987   5.5-8.5   (+2 -5 =7 )    1.5   -19
 - Spark 1.0 64-bit 4CPU             2976   2.5-5.5   (+2 -5 =1 )    3.5  -116
 - Zappa Mexico II 64-bit 4CPU       2973   4.5-3.5   (+2 -1 =5 )    4.3   +63
 - Fizbo 1.31 64-bit 4CPU            2961  12.5-15.5  (+7 -10=11)   18.2   -11
 - Crafty 25.0 64-bit 4CPU           2956   4.5-5.5   (+1 -2 =7 )   25.1    -9
 - Gaviota 1.0 64-bit 4CPU           2944   9.0-9.0   (+4 -4 =10)   43.5    +3
 - Arasan 17.5 64-bit 4CPU           2941   4.5-7.5   (+0 -3 =9 )   50.8   -59
 - Deep Sjeng WC2008 64-bit 4CPU     2930   6.0-2.0   (+4 -0 =4 )   71.9  +142
 - Toga II 3.0 4CPU                  2929   1.5-2.5   (+1 -2 =1 )   71.1  -103
 - Tornado 7.0 64-bit 4CPU           2903   8.0-6.0   (+5 -3 =6 )   95.7    +3
 - Tornado 6.0 64-bit 4CPU           2902   9.0-9.0   (+3 -3 =12)   96.4   -41
 - Cheng4 0.36c 64-bit 4CPU          2902   1.0-3.0   (+0 -2 =2 )   95.0  -188
 - Glaurung 2.2 64-bit 4CPU          2900   1.5-2.5   (+1 -2 =1 )   98.0  -136
 - Bright 0.5c 4CPU                  2896   3.0-1.0   (+3 -1 =0 )   98.0  +180
 - MinkoChess 1.3 64-bit 4CPU        2896   7.5-2.5   (+6 -1 =3 )   98.4  +134
 - Crafty 24.1 64-bit 4CPU           2884   7.0-7.0   (+5 -5 =4 )   99.2   -57
 - Scorpio 2.7.6 64-bit 4CPU         2882   9.0-5.0   (+5 -1 =8 )   99.6   +21
 - Bobcat 6.4b 64-bit 4CPU           2872   3.0-1.0   (+2 -0 =2 )   99.9   +80
 - Rodent 1.7 64-bit                 2852   3.0-1.0   (+2 -0 =2 )  100.0   +60
 - BugChess2 1.9 64-bit 4CPU         2850   3.5-0.5   (+3 -0 =1 )  100.0  +190
 - Octochess r5190 64-bit 4CPU       2830   7.0-3.0   (+4 -0 =6 )  100.0    +3
 - Pedone 1.1 64-bit 4CPU            2819   5.0-3.0   (+3 -1 =4 )  100.0   -43


Created in 2005-2013 by CCRL team
Last games added on November 18, 2017