CCRL 40/40
Downloads and Statistics
July 11, 2019
Testing summary:
Total: 1'066'603 games
played by 2'494 programs
145750 CPU days (X2 4600+)

White wins: 370'641 (34.7%)
Black wins: 275'905 (25.9%)
Draws: 420'057 (39.4%)
White score: 54.4%

Engine Details

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Bison 9.8 32-bit in CCRL 40/40, 2019-07-11
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, 2005-2019, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Bison 9.8 32-bit has no rank with rating of 2613 Elo points (+33 -33),
based on 301 games: 100 wins, 102 losses and 99 draws
Score: 49.7%, Average opponent: +0.6, Draws: 32.9%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Critter 0.42 32-bit                2705  10.0-15.0  (+5 -10=10)    0.0   +28
 - Cheese 1.8 64-bit                  2683   2.5-5.5   (+0 -3 =5 )    0.0   -30
 - BugChess2 1.6.4 32-bit             2657   0.5-0.5   (+0 -0 =1 )    1.6   +74
 - E.T. Chess 13.01.08                2649   1.0-4.0   (+0 -3 =2 )    2.4  -154
 - Colossus 2008b                     2643   2.0-2.0   (+1 -1 =2 )    5.1   +30
 - Chronos 1.9.7                      2639   9.0-13.0  (+6 -10=6 )    8.9   -40
 - Crafty 23.0 32-bit                 2630   2.5-4.5   (+2 -4 =1 )   23.1   -92
 - WildCat 8                          2629   3.0-5.0   (+1 -3 =4 )   20.2   -57
 - WildCat 7                          2625   7.0-7.0   (+5 -5 =4 )   27.0   +12
 - Ruffian 2.1.0                      2623   7.5-6.5   (+4 -3 =7 )   29.9   +29
 - BugChess2 1.6.3 32-bit             2620  21.5-18.5  (+14-11=15)   37.1   +31
 - Hamsters 0.7.1                     2618   3.0-1.0   (+2 -0 =2 )   40.3  +154
 - Monolith 0.4 64-bit                2607   2.5-3.5   (+2 -3 =1 )   63.1   -67
 - Alfil 8.1.1                        2600  24.5-16.5  (+20-12=9 )   76.6   +59
 - Sloppy 0.2.2 32-bit                2598   5.0-3.0   (+2 -0 =6 )   79.3   +48
 - The Baron 2.23 32-bit              2594   4.5-3.5   (+4 -3 =1 )   84.8   +26
 - The Baron 1.8.1                    2591  15.5-16.5  (+11-12=9 )   87.1   -33
 - Petir 4.999999                     2578   1.0-3.0   (+1 -3 =0 )   96.9  -269
 - Critter 0.40 32-bit                2576   2.0-2.0   (+1 -1 =2 )   94.7   -37
 - Rotor 0.5                          2564   4.5-3.5   (+3 -2 =3 )   99.5    -6
 - Zurichess Glarus 64-bit            2558   2.5-3.5   (+2 -3 =1 )   99.5  -121
 - Anaconda 2.0.1                     2554  18.0-14.0  (+14-10=8 )   99.7   -14


Created in 2005-2013 by CCRL team
Last games added on July 11, 2019