CCRL 40/4
Downloads and Statistics
June 22, 2019
Testing summary:
Total: 2'052'494 games
played by 2'371 programs
27529 CPU days (X2 4600+)

White wins: 797'533 (38.9%)
Black wins: 645'585 (31.5%)
Draws: 609'376 (29.7%)
White score: 53.7%

Engine Details

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K2 0.79 in CCRL 40/4, 2019-06-22
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 0.79 has no rank with rating of 2503 Elo points (+20 -19),
based on 925 games: 373 wins, 313 losses and 239 draws
Score: 53.2%, Average opponent: −24.8, Draws: 25.8%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Zurichess Glarus 64-bit            2578  12.5-19.5  (+8 -15=9 )    0.0    -1
 - Brutus 8.05 64-bit                 2556   6.5-12.5  (+3 -9 =7 )    0.0   -49
 - Carballo 1.4 64-bit                2553  16.0-16.0  (+12-12=8 )    0.0   +50
 - Ufim 8.02                          2539  11.5-20.5  (+9 -18=5 )    0.0   -71
 - AnMon 5.75                         2539  14.0-18.0  (+8 -12=12)    0.0    -4
 - Fridolin 2.00 64-bit               2538  17.5-13.5  (+9 -5 =17)    0.1   +73
 - DanaSah 4.88                       2533  18.5-12.5  (+14-8 =9 )    0.5   +93
 - Hermann 2.8 64-bit                 2531  15.5-16.5  (+11-12=9 )    0.5   +19
 - JikChess 0.02 64-bit               2523  12.0-20.0  (+9 -17=6 )    4.9   -74
 - Pepito 1.59.2 64-bit               2521  17.5-12.5  (+13-8 =9 )    5.8   +74
 - Green Light Chess 3.01.2.2         2505  15.0-17.0  (+10-12=10)   46.0   -17
 - Little Goliath Evolution 3.12      2505  16.0-15.0  (+11-10=10)   45.3   +15
 - Yace 0.99.87                       2503  14.0-17.0  (+11-14=6 )   51.6   -33
 - Trace 1.37a                        2500  14.0-18.0  (+9 -13=10)   63.3   -45
 - Betsabe II 1.66                    2495  19.5-12.5  (+16-9 =7 )   73.5   +72
 - Mephisto Gideon Professional       2473  14.5-17.5  (+11-14=7 )   99.6   -61
 - Cerebro 3.03d                      2471  13.0-9.0   (+12-8 =2 )   99.9   +44
 - Betsabe II 1.47                    2471  21.5-10.5  (+18-7 =7 )   99.6   +97
 - Dorky 4.3 64-bit                   2466  14.0-18.0  (+10-14=8 )  100.0   -78
 - Carballo 1.3 64-bit                2454  19.5-12.5  (+17-10=5 )  100.0   +34
 - LittleThought 1.052 64-bit         2453  18.0-14.0  (+14-10=8 )  100.0    -4
 - Shield 1.2 64-bit                  2448  21.0-11.0  (+18-8 =6 )  100.0   +60
 - Counter 1.2                        2446  13.0-19.0  (+5 -11=16)  100.0  -113
 - RomiChess P3L 64-bit               2411  15.0-7.0   (+12-4 =6 )  100.0   +35
 - Simplex 0.9.8 64-bit               2410  14.0-8.0   (+12-6 =4 )  100.0   +10
 - Giraffe 20150908 64-bit            2410  14.0-9.0   (+12-7 =4 )  100.0   -16
 - Ifrit m1.8 64-bit                  2401  13.0-10.0  (+10-7 =6 )  100.0   -50
 - PostModernist 1016                 2389  12.0-11.0  (+9 -8 =6 )  100.0   -97
 - Comet B50                          2388  15.0-1.0   (+14-0 =2 )  100.0  +292
 - Leila 0.53h                        2387  17.5-5.5   (+16-4 =3 )  100.0   +95
 - Diablo 0.5.1                       2385   9.0-14.0  (+7 -12=4 )  100.0  -197
 - Capture R01                        2385   9.5-10.5  (+7 -8 =5 )  100.0  -132
 - Amy 0.87b                          2385  19.0-4.0   (+16-1 =6 )  100.0  +121


Created in 2005-2013 by CCRL team
Last games added on June 22, 2019