CCRL 40/4
Downloads and Statistics
October 12, 2019
Testing summary:
Total: 2'115'766 games
played by 2'468 programs
28564 CPU days (X2 4600+)

White wins: 821'094 (38.8%)
Black wins: 663'997 (31.4%)
Draws: 630'675 (29.8%)
White score: 53.7%

Engine Details

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Zevra 1.8.3 r636 64-bit in CCRL 40/4, 2019-10-12
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 CPU.
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

CCRL 40/4 main list:
Zevra 1.8.3 r636 64-bit has no rank with rating of 2215 Elo points (+20 -20),
based on 894 games: 374 wins, 338 losses and 182 draws
Score: 52.0%, Average opponent: −14.8, Draws: 20.4%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - GreKo 2018.02 64-bit               2642   0.0-8.0   (+0 -8 =0 )    0.0  -INF
 - Napoleon 1.8 64-bit                2250  12.0-20.0  (+6 -14=12)    0.2   -44
 - Leela Chess 0.7 w187 64-bit        2236   9.5-19.5  (+6 -16=7 )    8.0  -104
 - Robocide 20170718 64-bit           2236  14.0-18.0  (+11-15=6 )    4.0   -25
 - GopherCheck 0.2.3 64-bit           2235  17.0-14.0  (+13-10=8 )    5.4   +56
 - Anechka 0.08                       2235  18.0-12.0  (+15-9 =6 )    3.1   +93
 - AliChess 4.25                      2229  14.5-17.5  (+13-16=3 )    9.9   -21
 - CT800 1.30 64-bit                  2229  13.0-19.0  (+8 -14=10)   14.5   -51
 - RamJet 0.13                        2220  15.5-16.5  (+12-13=7 )   34.0    -3
 - Adam 3.3                           2220  13.0-19.0  (+9 -15=8 )   30.4   -57
 - CT800 1.20 64-bit                  2218  17.5-14.5  (+15-12=5 )   38.8   +39
 - FireFly 2.7.0 64-bit               2208  18.0-12.0  (+15-9 =6 )   69.4   +62
 - Chispa 4.0.3                       2207  16.5-15.5  (+14-13=5 )   76.3    +4
 - Beowulf 2.4a 32-bit                2203  21.5-10.5  (+17-6 =9 )   84.3  +108
 - RattateChess 1.0 Nosferatu         2199  20.5-11.5  (+18-9 =5 )   91.2   +94
 - NG-Play 9.86 64-bit                2195  15.0-17.0  (+13-15=4 )   93.1   -46
 - Uralochka 1.1b                     2189  15.5-16.5  (+12-13=7 )   98.7   -35
 - Atak 6.8                           2185  18.5-13.5  (+17-12=3 )   99.6   +34
 - Mango Paola Ajedrez 1.0            2184  14.5-17.5  (+10-13=9 )   99.5   -62
 - Madeleine 0.2                      2183  16.5-15.5  (+13-12=7 )   99.7   -18
 - Protej 0.5.8c                      2177  18.5-12.5  (+15-9 =7 )   99.9   +31
 - Baislicka 1.0 64-bit               2174  14.0-17.0  (+10-13=8 )   99.9   -79
 - Genesis 2.0                        2171  20.0-12.0  (+17-9 =6 )  100.0   +51
 - Galjoen 0.37.2 64-bit              2160  19.0-13.0  (+18-12=2 )  100.0   +22
 - Blitzkrieg rev337 64-bit           2158  19.5-12.5  (+16-9 =7 )  100.0   +21
 - BlackBishop 1.0                    2157  23.5-8.5   (+21-6 =5 )  100.0  +126
 - NagaSkaki 5.12                     2155  11.0-21.0  (+7 -17=8 )  100.0  -174
 - Alarm 0.93.1                       2145  22.0-10.0  (+19-7 =6 )  100.0   +71
 - Lime 66                            2144  17.0-15.0  (+14-12=6 )  100.0   -49

Created in 2005-2013 by CCRL team
Last games added on October 12, 2019