CCRL 40/4
Downloads and Statistics
July 20, 2019
Testing summary:
Total: 2'069'919 games
played by 2'400 programs
27811 CPU days (X2 4600+)

White wins: 804'066 (38.8%)
Black wins: 650'528 (31.4%)
Draws: 615'325 (29.7%)
White score: 53.7%

Engine Details

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Stockfish 7 64-bit 4CPU in CCRL 40/4, 2019-07-20
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Stockfish 7 64-bit 4CPU has no rank with rating of 3427 Elo points (+20 -20),
based on 1008 games: 596 wins, 29 losses and 383 draws
Score: 78.1%, Average opponent: −201.0, Draws: 38.0%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Komodo 10.2 64-bit 4CPU            3434  13.0-9.0   (+6 -2 =14)   27.8   +56
 - Komodo 10 64-bit 4CPU              3429  28.5-23.5  (+12-7 =33)   42.1   +26
 - Komodo 10.1 64-bit 4CPU            3426  26.0-26.0  (+7 -7 =38)   53.0    -2
 - Houdini 4 64-bit 4CPU              3331  36.0-16.0  (+23-3 =26)  100.0   +18
 - Gull 3 64-bit 4CPU                 3260  44.0-8.0   (+36-0 =16)  100.0   +81
 - Fire 4 64-bit 4CPU                 3256  38.5-13.5  (+26-1 =25)  100.0   -24
 - Equinox 3.30 64-bit 4CPU           3252  37.5-14.5  (+25-2 =25)  100.0   -39
 - Critter 1.6a 64-bit 4CPU           3232  46.5-5.5   (+41-0 =11)  100.0  +123
 - Fritz 15 64-bit 4CPU               3223  41.0-11.0  (+30-0 =22)  100.0   -20
 - Andscacs 0.86 64-bit 4CPU          3221  39.5-12.5  (+28-1 =23)  100.0   -43
 - Rybka 4.1 64-bit 4CPU              3205  40.0-12.0  (+29-1 =22)  100.0   -49
 - BlackMamba 2.0 64-bit 4CPU         3197  40.5-11.5  (+30-1 =21)  100.0   -47
 - Fizbo 1.7 64-bit 4CPU              3184  39.5-12.5  (+30-3 =19)  100.0   -70
 - NirvanaChess 2.2 64-bit 4CPU       3181  47.5-4.5   (+43-0 =9 )  100.0  +108
 - Hannibal 1.5 64-bit 4CPU           3169  40.5-11.5  (+30-1 =21)  100.0   -76
 - Naum 4.6 64-bit 4CPU               3151  46.5-5.5   (+41-0 =11)  100.0   +42
 - Chiron 3.01 64-bit 4CPU            3145  46.0-6.0   (+40-0 =12)  100.0   +21
 - Texel 1.05 64-bit 4CPU             3142  46.0-6.0   (+40-0 =12)  100.0   +17
 - Protector 1.9.0 64-bit 4CPU        3127  44.5-5.5   (+39-0 =11)  100.0   +11
 - Bouquet 1.8 64-bit 4CPU            3072  46.0-6.0   (+40-0 =12)  100.0   -52


Created in 2005-2013 by CCRL team
Last games added on July 20, 2019