CCRL 40/40
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 1'104'002 games
played by 2'573 programs
150928 CPU days (X2 4600+)

White wins: 382'601 (34.7%)
Black wins: 284'129 (25.7%)
Draws: 437'272 (39.6%)
White score: 54.5%

Engine Details

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Butcher 1.61 64-bit in CCRL 40/40, 2019-12-07
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern CPU.
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/4040/

CCRL 40/40 main list:
Butcher 1.61 64-bit is #261-262 with rating of 2334 Elo points (+30 -30),
based on 393 games: 142 wins, 152 losses and 99 draws
Score: 48.7%, Average opponent: +10.5, 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               2461   2.0-2.0   (+2 -2 =0 )    0.0  +127
 - Sjakk 2.0 64-bit                   2402   1.0-2.0   (+1 -2 =0 )    0.0   -88
 - Patzer 3.80                        2400   9.0-15.0  (+7 -13=4 )    0.0   -30
 - Zevra 2.1.2 r248 64-bit            2398   3.5-6.5   (+2 -5 =3 )    0.1   -44
 - pikoSzachy 3.4                     2398  11.5-12.5  (+10-11=3 )    0.2   +51
 - Gosu 0.16                          2397   9.5-14.5  (+6 -11=7 )    0.0    -8
 - Phalanx XXII                       2393  11.0-13.0  (+9 -11=4 )    0.1   +27
 - Sorgenkind 0.4                     2388  11.0-13.0  (+8 -10=6 )    0.1   +24
 - Jazz 721 64-bit                    2384   1.0-1.0   (+1 -1 =0 )    0.3   +50
 - Tytan 9.3                          2377   9.5-14.5  (+6 -11=7 )    1.1   -33
 - Ares 1.004                         2373  10.0-14.0  (+7 -11=6 )    1.2   -23
 - TJchess 1.1 64-bit                 2364   0.0-2.0   (+0 -2 =0 )    5.0  -INF
 - Flux 2.2.1                         2357  10.5-13.5  (+7 -10=7 )   10.4   -18
 - GreKo 5.9                          2349   1.5-0.5   (+1 -0 =1 )   22.2  +133
 - Plisk 0.2.6 32-bit                 2349   1.0-0.0   (+1 -0 =0 )   25.3  +INF
 - Ifrit m1.6 32-bit                  2343   1.0-2.0   (+0 -1 =2 )   33.7   -73
 - Jumbo 0.4.17 64-bit                2342   4.5-5.5   (+3 -4 =3 )   34.7   -23
 - Aice 0.99.2                        2338   9.5-14.5  (+7 -12=5 )   39.6   -76
 - EveAnn 1.71                        2334   1.0-1.0   (+0 -0 =2 )   49.6     0
 - Plisk 0.2.6 64-bit                 2329  10.5-15.5  (+6 -11=9 )   59.3   -70
 - KnightX 1.93 64-bit                2319   6.0-4.0   (+5 -3 =2 )   78.7   +56
 - Kingfisher 1.1.1 64-bit            2314   7.0-5.0   (+4 -2 =6 )   83.9   +29
 - Capivara LK 0.09a01a 64-bit        2307   2.0-1.0   (+1 -0 =2 )   91.3   +55
 - Waxman 2011                        2304   2.0-1.0   (+2 -1 =0 )   92.8  +126
 - Sjakk 1.1.8                        2302  16.5-7.5   (+14-5 =5 )   95.0  +104
 - Alex 2.09                          2300   0.5-1.5   (+0 -1 =1 )   93.9  -190
 - Zeus 1.29                          2298   0.5-1.5   (+0 -1 =1 )   97.2  -178
 - Pawny 0.1.6                        2292   1.0-1.0   (+1 -1 =0 )   96.6   -42
 - Bearded N44.2 64-bit               2285   5.0-5.0   (+2 -2 =6 )   99.2   -52
 - Rhetoric Lite                      2282   0.5-1.5   (+0 -1 =1 )   98.5  -194
 - Glass 1.2                          2282   2.0-1.0   (+1 -0 =2 )   99.1   +19
 - OBender 03.2016 64-bit             2214   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   +28
 - Dorpsgek Cosmopolitan 2 64-bit     2151   9.5-0.5   (+9 -0 =1 )  100.0  +262
 - Napoleon 1.7 64-bit                2133   4.0-2.0   (+4 -2 =0 )  100.0   -51


Created in 2005-2013 by CCRL team
Last games added on December 7, 2019