CCRL 40/4
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 2'085'472 games
played by 2'422 programs
28065 CPU days (X2 4600+)

White wins: 809'852 (38.8%)
Black wins: 654'916 (31.4%)
Draws: 620'704 (29.8%)
White score: 53.7%

Engine Details

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Butcher 1.60n1 64-bit in CCRL 40/4, 2019-08-17
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:
Butcher 1.60n1 64-bit has no rank with rating of 2250 Elo points (+19 -19),
based on 1085 games: 408 wins, 462 losses and 215 draws
Score: 47.5%, Average opponent: +4.6, Draws: 19.8%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Nejmet 3.07                        2425   5.5-20.5  (+2 -17=7 )    0.0   -28
 - Dragon 4.6                         2418  10.5-19.5  (+8 -17=5 )    0.0   +56
 - nanoSzachy 3.5                     2413   9.0-15.0  (+7 -13=4 )    0.0   +76
 - RomiChess P3k 64-bit               2408   7.5-22.5  (+5 -20=5 )    0.0   -35
 - LittleThought 1.04 64-bit          2401   2.5-26.5  (+1 -25=3 )    0.0  -231
 - Amy 0.87b                          2385   4.0-26.0  (+2 -24=4 )    0.0  -176
 - Gosu 0.16                          2382  12.0-16.0  (+10-14=4 )    0.0   +83
 - Comet B68                          2377  12.5-17.5  (+9 -14=7 )    0.0   +72
 - Der Bringer 1.9                    2373   8.0-20.0  (+5 -17=6 )    0.0   -34
 - Djinn 0.925x                       2373   9.0-20.0  (+6 -17=6 )    0.0   -17
 - Muse 0.899b                        2371   7.5-22.5  (+6 -21=3 )    0.0   -86
 - Dirty ACCA3                        2368  12.0-17.0  (+6 -11=12)    0.0   +66
 - Glass 1.3                          2356   6.5-20.5  (+1 -15=11)    0.0   -53
 - Cheese 1.3                         2343  11.5-14.5  (+7 -10=9 )    0.0   +62
 - Eeyore 1.50                        2343  12.0-11.0  (+10-9 =4 )    0.0  +122
 - Horizon 4.4                        2341  12.0-19.0  (+11-18=2 )    0.0    -2
 - GreKo 6.5                          2337  10.0-17.0  (+5 -12=10)    0.0    +8
 - Queen 4.03                         2336   7.5-18.5  (+3 -14=9 )    0.0   -45
 - Arion 1.7                          2332  12.5-16.5  (+8 -12=9 )    0.0   +39
 - Sungorus 1.4 64-bit                2314  11.0-16.0  (+8 -13=6 )    0.0    +4
 - KnightX 1.92                       2297   9.5-16.5  (+7 -14=5 )    0.0   -44
 - Ares 1.003a                        2285  10.0-17.0  (+6 -13=8 )    0.1   -56
 - Popochin 3.2                       2275  13.0-13.0  (+10-10=6 )    0.9   +34
 - Natwarlal 0.14                     2261  15.5-22.5  (+11-18=9 )   14.7   -50
 - Anechka 0.08                       2234  16.5-19.5  (+14-17=5 )   93.3   -47
 - OBender 3.2.x                      2224  16.0-14.0  (+13-11=6 )   99.0    +2
 - EXchess 4.03                       2214  17.5-13.5  (+13-9 =9 )   99.8    +8
 - BlackBishop 0.98                   2163  30.0-8.0   (+26-4 =8 )  100.0  +135
 - InmiChess3.06N                     2162  20.0-9.0   (+18-7 =4 )  100.0   +67
 - Lime 66                            2143  25.0-11.0  (+22-8 =6 )  100.0   +46
 - Adam 3.2                           2123  19.0-9.0   (+18-8 =2 )  100.0   +29
 - Alex 1.96                          2120  26.5-10.5  (+24-8 =5 )  100.0   +42
 - BikJump 2.01 64-bit                2104  16.0-12.0  (+13-9 =6 )  100.0   -90
 - Bestia 0.90                        2021  26.5-12.5  (+25-11=3 )  100.0   -78
 - Myrddin 0.82 32-bit                1915  33.5-5.5   (+30-2 =7 )  100.0   -42
 - Chenard 2009.09.19                 1756  38.0-0.0   (+38-0 =0 )  100.0  +INF


Created in 2005-2013 by CCRL team
Last games added on August 17, 2019