CCRL 40/4
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 2'143'600 games
played by 2'509 programs
29100 CPU days (X2 4600+)

White wins: 830'432 (38.7%)
Black wins: 670'629 (31.3%)
Draws: 642'539 (30.0%)
White score: 53.7%

Engine Details

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Zevra 1.8.3 r636 64-bit in CCRL 40/4, 2019-12-07
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: −14.7, 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 )    8.2  -104
 - Robocide 20170718 64-bit           2236  14.0-18.0  (+11-15=6 )    4.0   -25
 - Anechka 0.08                       2235  18.0-12.0  (+15-9 =6 )    3.3   +93
 - GopherCheck 0.2.3 64-bit           2235  17.0-14.0  (+13-10=8 )    5.4   +56
 - AliChess 4.25                      2229  14.5-17.5  (+13-16=3 )   10.3   -21
 - CT800 1.30 64-bit                  2229  13.0-19.0  (+8 -14=10)   14.7   -51
 - Adam 3.3                           2220  13.0-19.0  (+9 -15=8 )   30.7   -57
 - RamJet 0.13                        2220  15.5-16.5  (+12-13=7 )   34.2    -3
 - CT800 1.20 64-bit                  2218  17.5-14.5  (+15-12=5 )   39.5   +39
 - FireFly 2.7.0 64-bit               2208  18.0-12.0  (+15-9 =6 )   70.1   +62
 - Chispa 4.0.3                       2207  16.5-15.5  (+14-13=5 )   76.6    +4
 - Beowulf 2.4a 32-bit                2203  21.5-10.5  (+17-6 =9 )   84.0  +108
 - RattateChess 1.0 Nosferatu         2199  20.5-11.5  (+18-9 =5 )   90.5   +94
 - NG-Play 9.86 64-bit                2195  15.0-17.0  (+13-15=4 )   93.3   -46
 - Uralochka 1.1b                     2189  15.5-16.5  (+12-13=7 )   98.8   -35
 - Mango Paola Ajedrez 1.0            2185  14.5-17.5  (+10-13=9 )   99.5   -61
 - Atak 6.8                           2184  18.5-13.5  (+17-12=3 )   99.7   +33
 - Madeleine 0.2                      2182  16.5-15.5  (+13-12=7 )   99.8   -19
 - Baislicka 1.0 64-bit               2177  14.0-17.0  (+10-13=8 )   99.9   -76
 - Protej 0.5.8c                      2177  18.5-12.5  (+15-9 =7 )   99.9   +31
 - 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           2159  19.5-12.5  (+16-9 =7 )  100.0   +22
 - BlackBishop 1.0                    2156  23.5-8.5   (+21-6 =5 )  100.0  +125
 - 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                            2143  17.0-15.0  (+14-12=6 )  100.0   -50


Created in 2005-2013 by CCRL team
Last games added on December 7, 2019