CCRL 40/4
Downloads and Statistics
July 20, 2019
Testing summary:
Total: 2'069'919 games
played by 2'400 programs
27811 CPU days (X2 4600+)

White wins: 804'066 (38.8%)
Black wins: 650'528 (31.4%)
Draws: 615'325 (29.7%)
White score: 53.7%

Engine Details

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K2 0.57 in CCRL 40/4, 2019-07-20
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:
K2 0.57 has no rank with rating of 2180 Elo points (+18 -18),
based on 1159 games: 492 wins, 427 losses and 240 draws
Score: 52.8%, Average opponent: −24.9, Draws: 20.7%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Absolute Zero 2.4.0.0 64-bit       2259  12.5-18.5  (+10-16=5 )    0.0    +3
 - Ant 2006-F                         2236  18.5-11.5  (+16-9 =5 )    0.0  +146
 - Anechka 0.08                       2235  14.0-16.0  (+12-14=4 )    0.0   +28
 - AliChess 4.25                      2229  11.5-19.5  (+10-18=3 )    0.0   -58
 - Fischerle 0.9.60 64-bit            2226  14.0-18.0  (+12-16=4 )    0.0    -5
 - OBender 3.2.x                      2224  17.0-14.0  (+12-9 =10)    0.0   +75
 - Adam 3.3                           2220   8.0-23.0  (+6 -21=4 )    0.0  -153
 - Lozza 1.13 64-bit                  2219  17.0-15.0  (+12-10=10)    0.1   +61
 - FireFly 2.7.0 64-bit               2208  17.5-13.5  (+14-10=7 )    0.7   +75
 - Orion 0.2 64-bit                   2206  13.0-19.0  (+9 -15=8 )    1.8   -36
 - Chispa 4.0.3                       2206  10.0-21.0  (+6 -17=8 )    0.4  -100
 - CyberPagno 2.1                     2205  14.0-18.0  (+8 -12=12)    0.7   -15
 - Beowulf 2.4a 32-bit                2203  15.5-16.5  (+12-13=7 )    1.6   +14
 - RattateChess 1.0 Nosferatu         2199  14.5-15.5  (+12-13=5 )    4.5    +5
 - Shallow 1.0 64-bit                 2192  18.0-14.0  (+13-9 =10)   14.9   +55
 - Uralochka 1.1b                     2188  12.5-19.5  (+8 -15=9 )   21.0   -65
 - Mango Paola Ajedrez 1.0            2184  19.5-11.5  (+16-8 =7 )   35.6   +97
 - Madeleine 0.2                      2183  13.5-18.5  (+10-15=7 )   39.4   -54
 - Atak 6.8                           2183  17.5-13.5  (+12-8 =11)   37.2   +46
 - Protej 0.5.8c                      2176  15.0-16.0  (+13-14=4 )   65.3   -19
 - Genesis 2.0                        2170  13.0-17.0  (+9 -13=8 )   83.8   -57
 - InmiChess3.06N                     2162  14.0-16.0  (+14-16=0 )   96.2   -47
 - BlackBishop 1.0                    2156  15.5-13.5  (+11-9 =9 )   99.1     0
 - Orion 0.1 64-bit                   2154  17.5-13.5  (+13-9 =9 )   97.9   +14
 - Alarm 0.93.1                       2145  14.5-16.5  (+11-13=7 )  100.0   -56
 - Lime 66                            2143  16.0-15.0  (+12-11=8 )  100.0   -27
 - Fortress 1.62                      2134  19.0-12.0  (+15-8 =8 )  100.0   +37
 - Nesik 0.7.0 alpha                  2134  17.0-12.0  (+14-9 =6 )  100.0   +22
 - WJChess 1.64                       2131  13.5-16.5  (+12-15=3 )  100.0   -91
 - NG-Play 9.84 64-bit                2118  19.0-12.0  (+16-9 =6 )  100.0   +19
 - BikJump 2.01 64-bit                2104  18.5-13.5  (+15-10=7 )  100.0   -16
 - Wing 2.0a                          2101  22.5-7.5   (+20-5 =5 )  100.0  +119
 - Clarabit 1.00 64-bit               2098  19.5-11.5  (+16-8 =7 )  100.0    +9
 - Napoleon 1.5.0 64-bit              2080  16.0-14.0  (+12-10=8 )  100.0   -71
 - Matheus 2.3                        2059  22.5-8.5   (+20-6 =5 )  100.0   +50
 - ChessMind 0.82                     2058  17.5-12.5  (+17-12=1 )  100.0   -51
 - Barbarossa 0.1.0                   1839  19.5-2.5   (+19-2 =1 )  100.0   +31
 - Zurichess 150116                   1741  24.0-1.0   (+23-0 =2 )  100.0   +45


Created in 2005-2013 by CCRL team
Last games added on July 20, 2019