CCRL 40/40
Downloads and Statistics
September 14, 2019
Testing summary:
Total: 1'083'337 games
played by 2'531 programs
147896 CPU days (X2 4600+)

White wins: 376'125 (34.7%)
Black wins: 279'699 (25.8%)
Draws: 427'513 (39.5%)
White score: 54.5%

Engine Details

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Bison 9.8 32-bit in CCRL 40/40, 2019-09-14
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, 2005-2019, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Bison 9.8 32-bit has no rank with rating of 2614 Elo points (+33 -33),
based on 301 games: 100 wins, 102 losses and 99 draws
Score: 49.7%, Average opponent: +0.5, Draws: 32.9%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Critter 0.42 32-bit               2706  10.0-15.0  (+5 -10=10)    0.0   +28
 - Cheese 1.8 64-bit                 2684   2.5-5.5   (+0 -3 =5 )    0.0   -30
 - BugChess2 1.6.4 32-bit            2658   0.5-0.5   (+0 -0 =1 )    1.6   +74
 - E.T. Chess 13.01.08               2650   1.0-4.0   (+0 -3 =2 )    2.4  -154
 - Colossus 2008b                    2644   2.0-2.0   (+1 -1 =2 )    5.1   +30
 - Chronos 1.9.7                     2641   9.0-13.0  (+6 -10=6 )    8.8   -39
 - Crafty 23.0 32-bit                2631   2.5-4.5   (+2 -4 =1 )   22.9   -92
 - WildCat 8                         2629   3.0-5.0   (+1 -3 =4 )   20.9   -58
 - WildCat 7                         2625   7.0-7.0   (+5 -5 =4 )   28.6   +11
 - Ruffian 2.1.0                     2624   7.5-6.5   (+4 -3 =7 )   30.0   +29
 - Hamsters 0.7.1                    2620   3.0-1.0   (+2 -0 =2 )   37.7  +155
 - BugChess2 1.6.3 32-bit            2620  21.5-18.5  (+14-11=15)   37.1   +30
 - Monolith 0.4 64-bit               2608   2.5-3.5   (+2 -3 =1 )   62.6   -67
 - Alfil 8.1.1                       2601  24.5-16.5  (+20-12=9 )   76.4   +59
 - Sloppy 0.2.2 32-bit               2599   5.0-3.0   (+2 -0 =6 )   79.2   +48
 - The Baron 2.23 32-bit             2595   4.5-3.5   (+4 -3 =1 )   84.7   +26
 - The Baron 1.8.1                   2592  15.5-16.5  (+11-12=9 )   87.2   -33
 - Petir 4.999999                    2579   1.0-3.0   (+1 -3 =0 )   96.9  -269
 - Critter 0.40 32-bit               2577   2.0-2.0   (+1 -1 =2 )   94.7   -37
 - Rotor 0.5                         2565   4.5-3.5   (+3 -2 =3 )   99.5    -6
 - Zurichess Glarus 64-bit           2559   2.5-3.5   (+2 -3 =1 )   99.5  -121
 - Anaconda 2.0.1                    2555  18.0-14.0  (+14-10=8 )   99.7   -14


Created in 2005-2013 by CCRL team
Last games added on September 14, 2019