CCRL 40/15
Downloads and Statistics
September 19, 2020
Testing summary:
Total: 1'178'235 games
played by 2'711 programs

White wins: 406'134 (34.5%)
Black wins: 300'016 (25.5%)
Draws: 472'085 (40.1%)
White score: 54.5%

Engine Details

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Butcher 1.61 64-bit in CCRL 40/15, 2020-09-19
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k.
Tested by CCRL team, 2005-2020, http://ccrl.chessdom.com/ccrl/4040/

CCRL 40/15 main list:
Butcher 1.61 64-bit is #274-275 with rating of 2335 Elo points (+30 -30),
based on 393 games: 142 wins, 152 losses and 99 draws
Score: 48.7%, Average opponent: +10.7, Draws: 25.2%


Pairwise results:
     Opponent                              Elo     Score                  LOS   Perf
 - NirvanaChess 1.1 64-bit                 2549   1.0-2.0   (+1 -2 =0 )    0.0   +48
 - Gogobello 1.0 64-bit                    2462   2.0-2.0   (+2 -2 =0 )    0.0  +127
 - Gosu 0.16                               2403   9.5-14.5  (+6 -11=7 )    0.0    -3
 - Sjakk 2.0 64-bit                        2403   1.0-2.0   (+1 -2 =0 )    0.0   -88
 - pikoSzachy 3.4                          2399  11.5-12.5  (+10-11=3 )    0.2   +51
 - Patzer 3.80                             2397   9.0-15.0  (+7 -13=4 )    0.0   -34
 - Zevra 2.1.2 r248 64-bit                 2397   3.5-6.5   (+2 -5 =3 )    0.0   -46
 - Phalanx XXII                            2394  11.0-13.0  (+9 -11=4 )    0.1   +27
 - Sorgenkind 0.4                          2389  11.0-13.0  (+8 -10=6 )    0.1   +24
 - Tytan 9.3                               2382   9.5-14.5  (+6 -11=7 )    0.6   -29
 - Jazz 721 64-bit                         2379   1.0-1.0   (+1 -1 =0 )    0.8   +44
 - Ares 1.004                              2374  10.0-14.0  (+7 -11=6 )    1.2   -23
 - TJchess 1.1 64-bit                      2365   0.0-2.0   (+0 -2 =0 )    5.2  -INF
 - Flux 2.2.1                              2358  10.5-13.5  (+7 -10=7 )   10.6   -18
 - Plisk 0.2.6 32-bit                      2350   1.0-0.0   (+1 -0 =0 )   25.7  +INF
 - GreKo 5.9                               2347   1.5-0.5   (+1 -0 =1 )   26.7  +130
 - Ifrit m1.6 32-bit                       2344   1.0-2.0   (+0 -1 =2 )   34.3   -73
 - Jumbo 0.4.17 64-bit                     2343   4.5-5.5   (+3 -4 =3 )   34.3   -23
 - Aice 0.99.2                             2338   9.5-14.5  (+7 -12=5 )   43.2   -77
 - EveAnn 1.71                             2335   1.0-1.0   (+0 -0 =2 )   49.1     0
 - Plisk 0.2.6 64-bit                      2330  10.5-15.5  (+6 -11=9 )   58.9   -70
 - KnightX 1.93 64-bit                     2321   6.0-4.0   (+5 -3 =2 )   77.7   +57
 - Kingfisher 1.1.1 64-bit                 2315   7.0-5.0   (+4 -2 =6 )   84.0   +29
 - Capivara LK 0.09a01a 64-bit             2308   2.0-1.0   (+1 -0 =2 )   91.7   +55
 - Waxman 2011                             2305   2.0-1.0   (+2 -1 =0 )   93.2  +126
 - Sjakk 1.1.8                             2303  16.5-7.5   (+14-5 =5 )   95.1  +104
 - Alex 2.09                               2301   0.5-1.5   (+0 -1 =1 )   94.2  -190
 - Zeus 1.29                               2299   0.5-1.5   (+0 -1 =1 )   97.3  -178
 - Pawny 0.1.6                             2293   1.0-1.0   (+1 -1 =0 )   96.7   -42
 - Bearded N44.2 64-bit                    2287   5.0-5.0   (+2 -2 =6 )   99.1   -51
 - Rhetoric Lite                           2285   0.5-1.5   (+0 -1 =1 )   98.3  -192
 - Glass 1.2                               2284   2.0-1.0   (+1 -0 =2 )   99.1   +20
 - OBender 03.2016 64-bit                  2215   8.5-1.5   (+7 -0 =3 )  100.0  +132
 - Isa 1.9.63 64-bit                       2186   7.0-3.0   (+7 -3 =0 )  100.0   +27
 - Dorpsgek Cosmopolitan 2 64-bit          2153   9.5-0.5   (+9 -0 =1 )  100.0  +263
 - Napoleon 1.7 64-bit                     2135   4.0-2.0   (+4 -2 =0 )  100.0   -50


Created in 2005-2013 by CCRL team
Last games added on September 19, 2020