CCRL 40/40
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 1'075'629 games
played by 2'520 programs
147029 CPU days (X2 4600+)

White wins: 373'444 (34.7%)
Black wins: 277'846 (25.8%)
Draws: 424'339 (39.5%)
White score: 54.4%

Engine Details

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Butcher 1.61 64-bit in CCRL 40/40, 2019-08-17
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 Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Butcher 1.61 64-bit is #259 with rating of 2335 Elo points (+30 -30),
based on 383 games: 140 wins, 147 losses and 96 draws
Score: 49.1%, Average opponent: +7.9, Draws: 25.1%


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              2461   2.0-2.0   (+2 -2 =0 )    0.0  +126
 - Sjakk 2.0 64-bit                  2402   1.0-2.0   (+1 -2 =0 )    0.0   -89
 - Patzer 3.80                       2402   9.0-15.0  (+7 -13=4 )    0.0   -29
 - pikoSzachy 3.4                    2398  11.5-12.5  (+10-11=3 )    0.3   +50
 - Gosu 0.16                         2395   9.5-14.5  (+6 -11=7 )    0.0   -11
 - Phalanx XXII                      2393  11.0-13.0  (+9 -11=4 )    0.1   +26
 - Sorgenkind 0.4                    2388  11.0-13.0  (+8 -10=6 )    0.1   +23
 - Jazz 721 64-bit                   2386   1.0-1.0   (+1 -1 =0 )    0.3   +51
 - Tytan 9.3                         2377   9.5-14.5  (+6 -11=7 )    1.4   -34
 - Ares 1.004                        2372  10.0-14.0  (+7 -11=6 )    1.5   -25
 - TJchess 1.1 64-bit                2364   0.0-2.0   (+0 -2 =0 )    5.7  -INF
 - Flux 2.2.1                        2357  10.5-13.5  (+7 -10=7 )   11.7   -19
 - Plisk 0.2.6 32-bit                2349   1.0-0.0   (+1 -0 =0 )   27.2  +INF
 - GreKo 5.9                         2348   1.5-0.5   (+1 -0 =1 )   24.5  +131
 - Ifrit m1.6 32-bit                 2344   1.0-2.0   (+0 -1 =2 )   33.8   -73
 - Jumbo 0.4.17 64-bit               2342   4.5-5.5   (+3 -4 =3 )   36.5   -24
 - Aice 0.99.2                       2337   9.5-14.5  (+7 -12=5 )   44.3   -78
 - Plisk 0.2.6 64-bit                2328  10.5-15.5  (+6 -11=9 )   61.6   -72
 - EveAnn 1.71                       2326   1.0-1.0   (+0 -0 =2 )   65.1    -9
 - KnightX 1.93 64-bit               2319   6.0-4.0   (+5 -3 =2 )   79.6   +55
 - Kingfisher 1.1.1 64-bit           2314   7.0-5.0   (+4 -2 =6 )   84.9   +28
 - Capivara LK 0.09a01a 64-bit       2307   2.0-1.0   (+1 -0 =2 )   92.0   +54
 - Waxman 2011                       2304   2.0-1.0   (+2 -1 =0 )   93.3  +125
 - Sjakk 1.1.8                       2302  16.5-7.5   (+14-5 =5 )   95.3  +103
 - Alex 2.09                         2300   0.5-1.5   (+0 -1 =1 )   94.5  -191
 - Zeus 1.29                         2298   0.5-1.5   (+0 -1 =1 )   97.5  -179
 - Pawny 0.1.6                       2292   1.0-1.0   (+1 -1 =0 )   96.9   -43
 - Bearded N44.2 64-bit              2285   5.0-5.0   (+2 -2 =6 )   99.2   -53
 - Rhetoric Lite                     2282   0.5-1.5   (+0 -1 =1 )   98.7  -195
 - Glass 1.2                         2282   2.0-1.0   (+1 -0 =2 )   99.2   +18
 - OBender 03.2016 64-bit            2214   8.5-1.5   (+7 -0 =3 )  100.0  +131
 - Isa 1.9.63 64-bit                 2186   7.0-3.0   (+7 -3 =0 )  100.0   +27
 - Dorpsgek Cosmopolitan 2 64-bit    2151   9.5-0.5   (+9 -0 =1 )  100.0  +261
 - Napoleon 1.7 64-bit               2134   4.0-2.0   (+4 -2 =0 )  100.0   -51


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