CCRL 40/40
Downloads and Statistics
September 21, 2019
Testing summary:
Total: 1'084'933 games
played by 2'536 programs
148136 CPU days (X2 4600+)

White wins: 376'624 (34.7%)
Black wins: 280'046 (25.8%)
Draws: 428'263 (39.5%)
White score: 54.5%

Engine Details

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Chronos 1.9.8 64-bit in CCRL 40/40, 2019-09-21
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:
Chronos 1.9.8 64-bit has no rank with rating of 2695 Elo points (+32 -32),
based on 308 games: 90 wins, 95 losses and 123 draws
Score: 49.2%, Average opponent: +6.8, Draws: 39.9%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Hannibal 1.0a 32-bit               2801   1.5-2.5   (+0 -1 =3 )    0.0   +12
 - Glaurung 2.2 64-bit                2783   3.0-1.0   (+2 -0 =2 )    0.0  +206
 - Scorpio 2.7.6 64-bit               2782   1.5-2.5   (+1 -2 =1 )    0.0   +28
 - Twisted Logic 20100131x 64-bit     2767  11.0-13.0  (+7 -9 =8 )    0.0   +42
 - Thinker 5.3b Passive 64-bit        2766   0.5-3.5   (+0 -3 =1 )    0.0  -182
 - SmarThink 1.20 64-bit              2764   4.5-19.5  (+0 -15=9 )    0.0  -139
 - DiscoCheck 4.3 64-bit              2759   2.0-2.0   (+1 -1 =2 )    0.1   +33
 - GNU Chess 5.50 64-bit              2758   0.5-3.5   (+0 -3 =1 )    0.0  -190
 - Dirty 05Sep2012 64-bit             2754   2.0-2.0   (+2 -2 =0 )    0.2   +89
 - Spike 1.2 Turin                    2746   8.5-15.5  (+4 -11=9 )    0.1   -39
 - Laser 1.0 64-bit                   2734   5.0-5.0   (+3 -3 =4 )    3.1   +34
 - Arasan 15.6 64-bit                 2730   3.0-1.0   (+3 -1 =0 )    6.3  +233
 - EXchess 7.03b 64-bit               2722   2.0-0.0   (+2 -0 =0 )   12.8  +INF
 - Crafty 23.2 64-bit                 2712  10.5-12.5  (+6 -8 =9 )   22.6   -12
 - Booot 4.15.0                       2693  10.5-13.5  (+2 -5 =17)   54.6   -34
 - Delfi 5.4                          2690  15.5-8.5   (+10-3 =11)   62.8   +83
 - Cheese 1.8 64-bit                  2684   3.5-4.5   (+1 -2 =5 )   72.8   -47
 - Movei 00.8.438 (10 10 10)          2667  13.5-10.5  (+8 -5 =11)   95.1    +9
 - RedQueen 1.1.98 64-bit             2667   5.5-4.5   (+4 -3 =3 )   93.5    -1
 - BugChess2 1.6.4 64-bit             2661  15.5-7.5   (+14-6 =3 )   93.9  +105
 - Colossus 2008b                     2644  15.0-9.0   (+11-5 =8 )   99.9   +28
 - FabChess 1.11 64-bit               2639   2.0-2.0   (+2 -2 =0 )   97.3   -56
 - Tucano 3.00 64-bit                 2620   4.0-6.0   (+1 -3 =6 )  100.0  -129
 - Phalanx XXV                        2619   6.0-4.0   (+4 -2 =4 )  100.0   -11
 - GreKo 2015 64-bit                  2609   5.0-3.0   (+2 -0 =6 )  100.0   -18


Created in 2005-2013 by CCRL team
Last games added on September 21, 2019