CCRL 40/40
Downloads and Statistics
July 11, 2019
Testing summary:
Total: 1'066'603 games
played by 2'494 programs
145750 CPU days (X2 4600+)

White wins: 370'641 (34.7%)
Black wins: 275'905 (25.9%)
Draws: 420'057 (39.4%)
White score: 54.4%

Engine Details

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Myrddin 0.85 64-bit in CCRL 40/40, 2019-07-11
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:
Myrddin 0.85 64-bit has no rank with rating of 2218 Elo points (+27 -26),
based on 518 games: 212 wins, 191 losses and 115 draws
Score: 52.0%, Average opponent: −15.8, Draws: 22.2%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Maverick 0.51 64-bit               2336   3.5-6.5   (+2 -5 =3 )    0.0   +17
 - Bagatur 1.3a 64-bit                2325   0.5-1.5   (+0 -1 =1 )    0.0   -50
 - Sjakk 1.1.9                        2325   2.0-2.0   (+2 -2 =0 )    0.0  +107
 - ECE 12.01                          2318   0.0-2.0   (+0 -2 =0 )    0.0  -INF
 - Chaturanga 2.4.3                   2289  13.5-10.5  (+10-7 =7 )    0.0  +116
 - AliChess 4.25                      2283   0.0-4.0   (+0 -4 =0 )    0.0  -INF
 - Rhetoric Lite                      2281   0.5-1.5   (+0 -1 =1 )    0.3   -93
 - Gibbon 2.57a 64-bit                2272   1.0-1.0   (+0 -0 =2 )    0.2   +54
 - Fischerle 0.9.60 64-bit            2264   2.5-5.5   (+2 -5 =1 )    1.2  -101
 - AliChess 4.21                      2257  10.0-14.0  (+7 -11=6 )    1.5   -22
 - Jazz 501 64-bit                    2248  14.5-15.5  (+11-12=7 )    7.2   +17
 - Beowulf 2.4a 64-bit                2248  12.5-13.5  (+11-12=3 )    3.2   +13
 - Atak 6.8                           2236  16.5-11.5  (+13-8 =7 )   13.2   +80
 - KMTChess 1.2.1 64-bit              2230  11.0-13.0  (+10-12=2 )   25.6   -18
 - Dolphin 1.0 64-bit                 2229   2.5-3.5   (+2 -3 =1 )   25.3   -56
 - Vajolet 1.62.1                     2221   0.5-1.5   (+0 -1 =1 )   44.5  -139
 - FireFly 2.5.12 64-bit              2217  13.5-10.5  (+10-7 =7 )   52.5   +42
 - Gibbon 2.52a                       2215  14.0-10.0  (+11-7 =6 )   56.5   +55
 - DoubleCheck 2.3.1 64-bit           2214  17.5-22.5  (+13-18=9 )   57.4   -47
 - ChessKISS 1.7c 64-bit              2212   5.0-5.0   (+4 -4 =2 )   63.2   -11
 - Adam 3.3                           2210   3.5-8.5   (+2 -7 =3 )   69.4  -159
 - ChessKISS 1.7 64-bit               2208   6.0-4.0   (+3 -1 =6 )   71.6   +45
 - FireFly 2.5.13 64-bit              2207   8.0-4.0   (+7 -3 =2 )   69.2  +117
 - Neurosis 2.5                       2205  15.5-8.5   (+13-6 =5 )   78.2   +93
 - OBender 3.2.4.2                    2191   8.5-15.5  (+8 -15=1 )   94.8  -153
 - Quazar 0.2 64-bit                  2189  11.0-13.0  (+9 -11=4 )   91.2   -58
 - Shallow 1.0 64-bit                 2185   5.0-7.0   (+3 -5 =4 )   94.2   -92
 - Kurt 0.9.2.2 64-bit                2169  24.0-10.0  (+21-7 =6 )   99.8  +107
 - ProChess 1.02AD                    2163   1.0-1.0   (+1 -1 =0 )   99.9   -55
 - KnockOut 0.7.1                     2150  15.0-9.0   (+12-6 =6 )  100.0   +21
 - Carballo 0.5                       2095   1.0-1.0   (+0 -0 =2 )  100.0  -123
 - Rhetoric 0.10.d                    2049   4.0-6.0   (+3 -5 =2 )  100.0  -243
 - Bubble 1.5                         2010   6.5-1.5   (+6 -1 =1 )  100.0   +49
 - Cupcake 1.0                        1993   4.5-1.5   (+3 -0 =3 )  100.0   -72
 - AdroitChess 0.3                    1982   4.0-0.0   (+4 -0 =0 )  100.0  +INF
 - Dabbaba 5.67                       1963   1.5-0.5   (+1 -0 =1 )  100.0   -98
 - BSC 3.9++ 32-bit                   1959   1.0-1.0   (+0 -0 =2 )  100.0  -259
 - Soldat III 0.172 32-bit            1948   2.0-0.0   (+2 -0 =0 )  100.0  +INF
 - Dabbaba 6.52                       1938   2.0-0.0   (+2 -0 =0 )  100.0  +INF
 - Jabba 13032012                     1905   4.0-0.0   (+4 -0 =0 )  100.0  +INF
 - Ziggurat 0.18 64-bit               1787   0.5-1.5   (+0 -1 =1 )  100.0  -587


Created in 2005-2013 by CCRL team
Last games added on July 11, 2019