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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Gibbon 2.57a 64-bit 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:
Gibbon 2.57a 64-bit has no rank with rating of 2286 Elo points (+15 -15),
based on 1652 games: 592 wins, 675 losses and 385 draws
Score: 47.5%, Average opponent: +20.2, Draws: 23.3%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Pedone 0.4 64-bit                  2450   3.5-23.5  (+2 -22=3 )    0.0  -165
 - RomiChess P3L 64-bit               2412  12.5-19.5  (+6 -13=13)    0.0   +53
 - PostModernist 1016                 2389   8.5-23.5  (+7 -22=3 )    0.0   -91
 - Leila 0.53h                        2387   9.5-22.5  (+8 -21=3 )    0.0   -67
 - Amy 0.87b                          2385  13.5-17.5  (+9 -13=9 )    0.0   +53
 - Gosu 0.16                          2382  13.5-18.5  (+11-16=5 )    0.0   +34
 - Comet B68                          2377  12.5-19.5  (+9 -16=7 )    0.0   +10
 - Der Bringer 1.9                    2374   9.5-21.5  (+7 -19=5 )    0.0   -61
 - Djinn 0.925x                       2373  13.0-19.0  (+9 -15=8 )    0.0   +16
 - Muse 0.899b                        2371   7.0-25.0  (+4 -22=6 )    0.0  -135
 - Phalanx XXIII beta                 2370  13.0-18.0  (+10-15=6 )    0.0   +21
 - Terra 3.4                          2368  10.5-21.5  (+8 -19=5 )    0.0   -51
 - Myrddin 0.86 64-bit                2366  15.5-16.5  (+11-12=9 )    0.0   +71
 - The Crazy Bishop 0052              2363   9.0-23.0  (+5 -19=8 )    0.0   -80
 - Capivara LK 0.09a02c 64-bit        2358  11.5-18.5  (+6 -13=11)    0.0    -2
 - Amateur 2.82                       2351  12.5-19.5  (+11-18=3 )    0.0   -23
 - Alex 2.14a 64-bit                  2347  15.5-16.5  (+13-14=5 )    0.0   +48
 - Plisk 0.2.7d 64-bit                2343  14.0-16.0  (+11-13=6 )    0.0   +34
 - Horizon 4.4                        2342  11.5-20.5  (+8 -17=7 )    0.0   -49
 - EXchess 6.02b 64-bit               2341  13.5-17.5  (+11-15=5 )    0.0    +3
 - Queen 4.03                         2337  11.0-21.0  (+7 -17=8 )    0.0   -63
 - TJchess 1.1 64-bit                 2337  15.0-17.0  (+10-12=10)    0.0   +25
 - Ares 1.004                         2332  14.0-15.0  (+11-12=6 )    0.0   +34
 - Arion 1.7                          2332  11.0-21.0  (+8 -18=6 )    0.0   -72
 - Sage 3.53                          2325  14.5-16.5  (+12-14=5 )    0.0   +14
 - Chezzz 1.0.3                       2324  18.0-14.0  (+15-11=6 )    0.0   +82
 - Sungorus 1.4 64-bit                2314  16.0-16.0  (+12-12=8 )    0.1   +31
 - EveAnn 1.71a                       2308  11.0-21.0  (+6 -16=10)    2.3   -86
 - TJchess 1.01                       2305  28.5-35.5  (+25-32=7 )    3.3   -24
 - KnightX 1.92                       2297  17.5-14.5  (+14-11=7 )   10.4   +44
 - Popochin 3.2                       2275  18.5-13.5  (+15-10=7 )   90.7   +46
 - Sjakk 1.1.9                        2273  18.5-13.5  (+14-9 =9 )   88.9   +41
 - Waxman 2013                        2269  12.0-19.0  (+8 -15=8 )   94.5   -96
 - Esc 1.16                           2267  18.5-13.5  (+14-9 =9 )   98.9   +36
 - Butcher 1.61 64-bit                2264  15.5-15.5  (+10-10=11)   99.0   -22
 - Zeus 1.29                          2262  19.0-13.0  (+14-8 =10)   99.8   +42
 - Mediocre 0.5                       2261  20.0-12.0  (+18-10=4 )   99.1   +74
 - Natwarlal 0.14                     2261  22.0-10.0  (+17-5 =10)   99.9  +104
 - Capivara LK 0.08a11 64-bit         2252  18.0-14.0  (+11-7 =14)  100.0    +3
 - Rhetoric Lite                      2237  19.5-12.5  (+16-9 =7 )  100.0   +29
 - Myrddin 0.85 64-bit                2236  14.0-18.0  (+10-14=8 )  100.0   -97
 - Ant 2006-F                         2236  20.0-12.0  (+16-8 =8 )  100.0   +40
 - Anechka 0.08                       2235  21.5-10.5  (+17-6 =9 )  100.0   +72
 - EveAnn 1.66                        2232  13.0-18.0  (+8 -13=10)  100.0  -111
 - AliChess 4.25                      2229  18.5-13.5  (+15-10=7 )  100.0    -2
 - Jazz 501 64-bit                    2224  20.0-12.0  (+15-7 =10)  100.0   +21
 - OBender 3.2.x                      2224  22.0-10.0  (+17-5 =10)  100.0   +66
 - Adam 3.3                           2220  19.5-12.5  (+17-10=5 )  100.0   +18
 - Exacto 0.e 64-bit                  2217  21.5-8.5   (+19-6 =5 )  100.0   +99
 - FireFly 2.7.0 64-bit               2208  16.5-15.5  (+15-14=3 )  100.0   -64
 - Mango Paola Ajedrez 1.0            2184  22.5-9.5   (+13-0 =19)  100.0   +10
 - Dolphin 1.0 64-bit                 2055   8.0-2.0   (+7 -1 =2 )  100.0    -3


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