CCRL 40/4
Downloads and Statistics
September 14, 2019
Testing summary:
Total: 2'097'576 games
played by 2'442 programs
28220 CPU days (X2 4600+)

White wins: 814'639 (38.8%)
Black wins: 658'954 (31.4%)
Draws: 623'983 (29.7%)
White score: 53.7%

Engine Details

Options
Show each game results
K2 0.71 in CCRL 40/4, 2019-09-14
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 0.71 has no rank with rating of 2385 Elo points (+18 -18),
based on 1213 games: 532 wins, 419 losses and 262 draws
Score: 54.7%, Average opponent: −37.3, Draws: 21.6%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Mephisto Gideon Professional       2474  10.0-18.0  (+7 -15=6 )    0.0   -14
 - Cerebro 3.03d                      2471   8.5-19.5  (+5 -16=7 )    0.0   -53
 - Dorky 4.3 64-bit                   2466  10.5-16.5  (+7 -13=7 )    0.0    +5
 - Carballo 1.3 64-bit                2454  11.0-21.0  (+5 -15=12)    0.0   -34
 - LittleThought 1.052 64-bit         2452  13.0-16.0  (+10-13=6 )    0.0   +31
 - Counter 1.2                        2447  11.0-19.0  (+7 -15=8 )    0.0   -29
 - Matacz 1.4                         2446  12.5-16.5  (+9 -13=7 )    0.0    +8
 - SpiderChess 070603                 2439   9.5-11.5  (+6 -8 =7 )    0.0   +18
 - King of Kings 2.56                 2434   8.5-18.5  (+8 -18=1 )    0.0  -111
 - LambChop 10.99                     2434  11.0-18.0  (+8 -15=6 )    0.0   -37
 - Eeyore 1.52 64-bit                 2427  13.0-15.0  (+10-12=6 )    0.0   +15
 - Nejmet 3.07                        2425  10.0-16.0  (+7 -13=6 )    0.0   -46
 - Gaia 3.5 64-bit                    2425  15.5-13.5  (+13-11=5 )    0.0   +65
 - Ares 1.005 64-bit                  2424  10.5-15.5  (+5 -10=11)    0.1   -21
 - Quark 2.35                         2423  12.5-17.5  (+9 -14=7 )    0.0   -22
 - Hussar 0.4                         2419  10.5-16.5  (+7 -13=7 )    0.0   -46
 - Dragon 4.6                         2417  13.5-16.5  (+10-13=7 )    0.0    -3
 - RomiChess P3L 64-bit               2412  15.5-15.5  (+13-13=5 )    0.6   +28
 - Giraffe 20150908 64-bit            2410  19.0-13.0  (+16-10=6 )    2.4   +96
 - Simplex 0.9.8 64-bit               2410  11.5-11.5  (+8 -8 =7 )    0.8   +27
 - Myrddin 0.87 64-bit                2380  11.0-16.0  (+7 -12=8 )   68.8   -65
 - Cmcchess 2.6 64-bit                2377  10.5-7.5   (+8 -5 =5 )   77.7   +43
 - Laser 0.1 64-bit                   2374  15.0-17.0  (+8 -10=14)   80.0   -34
 - Maverick 0.60 64-bit               2363  15.0-17.0  (+12-14=6 )   95.8   -43
 - CyberPagno 2.3 64-bit              2344  19.5-12.5  (+16-9 =7 )  100.0   +38
 - Gibbon 2.69a 64-bit                2326  13.0-19.0  (+10-16=6 )  100.0  -127
 - Schooner 1.4.1 64-bit              2320  23.5-8.5   (+20-5 =7 )  100.0  +110
 - Jazz 840 64-bit                    2317  21.5-10.5  (+18-7 =7 )  100.0   +57
 - Zeus 1.29                          2262  25.0-6.0   (+24-5 =2 )  100.0  +151
 - Mediocre 0.5                       2261  22.0-9.0   (+20-7 =4 )  100.0   +44
 - Absolute Zero 2.4.0.0 64-bit       2259  21.0-11.0  (+18-8 =6 )  100.0    -8
 - Ant 2006-F                         2236  20.0-12.0  (+17-9 =6 )  100.0   -55
 - Anechka 0.08                       2235  22.0-10.0  (+20-8 =4 )  100.0     0
 - AliChess 4.25                      2229  22.5-9.5   (+19-6 =7 )  100.0    -7
 - Fischerle 0.9.60 64-bit            2226  23.0-9.0   (+20-6 =6 )  100.0    +7
 - OBender 3.2.x                      2224  26.5-5.5   (+25-4 =3 )  100.0  +126
 - Adam 3.3                           2220  23.5-8.5   (+21-6 =5 )  100.0   +20
 - FireFly 2.7.0 64-bit               2208  23.0-9.0   (+19-5 =8 )  100.0   -18
 - Orion 0.2 64-bit                   2206  26.5-5.5   (+24-3 =5 )  100.0   +89
 - Chispa 4.0.3                       2206  19.5-12.5  (+16-9 =7 )  100.0   -99
 - RattateChess 1.0 Nosferatu         2199  22.5-9.5   (+20-7 =5 )  100.0   -25


Created in 2005-2013 by CCRL team
Last games added on September 14, 2019