CCRL 40/4
Downloads and Statistics
July 6, 2019
Testing summary:
Total: 2'062'148 games
played by 2'380 programs
27711 CPU days (X2 4600+)

White wins: 801'254 (38.9%)
Black wins: 648'494 (31.4%)
Draws: 612'400 (29.7%)
White score: 53.7%

Engine Details

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Zevra 1.8.5 r664 64-bit in CCRL 40/4, 2019-07-06
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Zevra 1.8.5 r664 64-bit has no rank with rating of 2273 Elo points (+25 -25),
based on 567 games: 259 wins, 169 losses and 139 draws
Score: 57.9%, Average opponent: −58.6, Draws: 24.5%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Amundsen 0.80                      2329  18.0-22.0  (+14-18=8 )    0.0   +19
 - Galjoen 0.38 64-bit                2319   0.0-1.0   (+0 -1 =0 )    0.2  -INF
 - Paladin 0.1 64-bit                 2272   0.5-0.5   (+0 -0 =1 )   52.4   -31
 - Natwarlal 0.14                     2261  26.0-24.0  (+17-15=18)   81.5    +1
 - KMTChess 1.2.1 64-bit              2260  25.0-24.0  (+18-17=14)   80.3    -7
 - Butcher 1.64 64-bit                2256   1.0-0.0   (+1 -0 =0 )   83.7  +INF
 - Ant 2006-F                         2236  27.5-23.5  (+20-16=15)   99.7   -12
 - Anechka 0.08                       2235  32.0-19.0  (+24-11=16)   99.8   +50
 - AliChess 4.25                      2229  22.0-28.0  (+17-23=10)   99.9   -87
 - Adam 3.3                           2220  35.5-14.5  (+31-10=9 )  100.0  +107
 - Exacto 0.e 64-bit                  2217  22.5-25.5  (+15-18=15)  100.0   -78
 - OBender 03.2016 64-bit             2213  26.0-24.0  (+22-20=8 )  100.0   -42
 - Madeleine 0.2                      2183   0.5-0.5   (+0 -0 =1 )  100.0   -59
 - SjaakII 1.3.0 64-bit               2177   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Asymptote 0.1.8 64-bit             2176  26.0-14.0  (+21-9 =10)  100.0    +7
 - InmiChess 3.05                     2156   0.5-0.5   (+0 -0 =1 )  100.0   -86
 - Hedgehog 1.9 64-bit                2122  28.5-11.5  (+24-7 =9 )  100.0    +3
 - Gunborg 1.35 64-bit                2069   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - RDChess 3.23                       2046   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Detroid 0.9.0 64-bit               2042  34.0-6.0   (+32-4 =4 )  100.0   +77


Created in 2005-2013 by CCRL team
Last games added on July 6, 2019