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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Bison 9.8 32-bit 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:
Bison 9.8 32-bit has no rank with rating of 2614 Elo points (+33 -33),
based on 295 games: 98 wins, 99 losses and 98 draws
Score: 49.8%, Average opponent: −0.7, Draws: 33.2%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Critter 0.42 32-bit               2705  10.0-15.0  (+5 -10=10)    0.0   +27
 - Cheese 1.8 64-bit                 2682   2.5-5.5   (+0 -3 =5 )    0.0   -32
 - BugChess2 1.6.4 32-bit            2657   0.5-0.5   (+0 -0 =1 )    1.8   +73
 - E.T. Chess 13.01.08               2647   1.0-4.0   (+0 -3 =2 )    3.5  -157
 - Colossus 2008b                    2642   2.0-2.0   (+1 -1 =2 )    6.0   +28
 - Chronos 1.9.7                     2639   9.0-13.0  (+6 -10=6 )   10.1   -41
 - Crafty 23.0 32-bit                2629   2.5-4.5   (+2 -4 =1 )   24.8   -94
 - WildCat 8                         2628   3.0-5.0   (+1 -3 =4 )   23.1   -59
 - WildCat 7                         2624   7.0-7.0   (+5 -5 =4 )   29.4   +10
 - Ruffian 2.1.0                     2621   7.5-6.5   (+4 -3 =7 )   35.3   +26
 - Hamsters 0.7.1                    2619   3.0-1.0   (+2 -0 =2 )   39.2  +154
 - BugChess2 1.6.3 32-bit            2619  21.5-18.5  (+14-11=15)   38.8   +29
 - Alfil 8.1.1                       2600  24.5-16.5  (+20-12=9 )   78.0   +58
 - Sloppy 0.2.2 32-bit               2598   5.0-3.0   (+2 -0 =6 )   80.7   +47
 - The Baron 2.23 32-bit             2594   4.5-3.5   (+4 -3 =1 )   86.0   +25
 - The Baron 1.8.1                   2591  15.5-16.5  (+11-12=9 )   87.8   -34
 - Petir 4.999999                    2577   1.0-3.0   (+1 -3 =0 )   97.5  -271
 - Critter 0.40 32-bit               2575   2.0-2.0   (+1 -1 =2 )   95.2   -39
 - Rotor 0.5                         2564   4.5-3.5   (+3 -2 =3 )   99.6    -7
 - Zurichess Glarus 64-bit           2556   2.5-3.5   (+2 -3 =1 )   99.6  -124
 - Anaconda 2.0.1                    2554  18.0-14.0  (+14-10=8 )   99.8   -15


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