CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

Engine Details

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Butcher 1.61 64-bit in CCRL 40/15, 2021-05-08
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, 2005-2021, http://ccrl.chessdom.com/ccrl/4040/

CCRL 40/15 main list:
Butcher 1.61 64-bit is #280 with rating of 2334 Elo points (+30 -30),
based on 393 games: 142 wins, 152 losses and 99 draws
Score: 48.7%, Average opponent: +11.0, 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   +49
 - Gogobello 1.0 64-bit                    2462   2.0-2.0   (+2 -2 =0 )    0.0  +128
 - Sjakk 2.0 64-bit                        2402   1.0-2.0   (+1 -2 =0 )    0.0   -88
 - Gosu 0.16                               2402   9.5-14.5  (+6 -11=7 )    0.0    -3
 - pikoSzachy 3.4                          2399  11.5-12.5  (+10-11=3 )    0.2   +52
 - Patzer 3.80                             2395   9.0-15.0  (+7 -13=4 )    0.0   -35
 - Phalanx XXII                            2393  11.0-13.0  (+9 -11=4 )    0.1   +27
 - Zevra 2.1.2 r248 64-bit                 2390   3.5-6.5   (+2 -5 =3 )    0.1   -52
 - Sorgenkind 0.4                          2388  11.0-13.0  (+8 -10=6 )    0.1   +24
 - Tytan 9.3                               2384   9.5-14.5  (+6 -11=7 )    0.4   -26
 - Jazz 721 64-bit                         2377   1.0-1.0   (+1 -1 =0 )    1.0   +43
 - Ares 1.004                              2373  10.0-14.0  (+7 -11=6 )    1.3   -23
 - TJchess 1.1 64-bit                      2364   0.0-2.0   (+0 -2 =0 )    5.3  -INF
 - Flux 2.2.1                              2357  10.5-13.5  (+7 -10=7 )   10.5   -18
 - Plisk 0.2.6 32-bit                      2349   1.0-0.0   (+1 -0 =0 )   25.8  +INF
 - GreKo 5.9                               2346   1.5-0.5   (+1 -0 =1 )   26.8  +130
 - Ifrit m1.6 32-bit                       2344   1.0-2.0   (+0 -1 =2 )   34.2   -72
 - Jumbo 0.4.17 64-bit                     2343   4.5-5.5   (+3 -4 =3 )   34.3   -22
 - Aice 0.99.2                             2339   9.5-14.5  (+7 -12=5 )   39.4   -75
 - EveAnn 1.71                             2335   1.0-1.0   (+0 -0 =2 )   48.8    +1
 - Plisk 0.2.6 64-bit                      2330  10.5-15.5  (+6 -11=9 )   58.4   -69
 - KnightX 1.93 64-bit                     2320   6.0-4.0   (+5 -3 =2 )   77.9   +57
 - Kingfisher 1.1.1 64-bit                 2314   7.0-5.0   (+4 -2 =6 )   84.2   +29
 - Capivara LK 0.09a01a 64-bit             2307   2.0-1.0   (+1 -0 =2 )   91.7   +55
 - Waxman 2011                             2304   2.0-1.0   (+2 -1 =0 )   93.2  +126
 - Zeus 1.29                               2303   0.5-1.5   (+0 -1 =1 )   95.6  -173
 - Sjakk 1.1.8                             2302  16.5-7.5   (+14-5 =5 )   95.1  +104
 - Alex 2.09                               2300   0.5-1.5   (+0 -1 =1 )   94.2  -190
 - Pawny 0.1.6                             2293   1.0-1.0   (+1 -1 =0 )   96.6   -41
 - Bearded N44.2 64-bit                    2286   5.0-5.0   (+2 -2 =6 )   99.1   -51
 - Rhetoric Lite                           2285   0.5-1.5   (+0 -1 =1 )   98.3  -191
 - Glass 1.2                               2283   2.0-1.0   (+1 -0 =2 )   99.1   +20
 - OBender 03.2016 64-bit                  2214   8.5-1.5   (+7 -0 =3 )  100.0  +132
 - Isa 1.9.63 64-bit                       2185   7.0-3.0   (+7 -3 =0 )  100.0   +27
 - Dorpsgek Cosmopolitan 2 64-bit          2152   9.5-0.5   (+9 -0 =1 )  100.0  +263
 - Napoleon 1.7 64-bit                     2134   4.0-2.0   (+4 -2 =0 )  100.0   -50


Created in 2005-2013 by CCRL team
Last games added on May 8, 2021