CCRL 40/4
Downloads and Statistics
July 17, 2019
Testing summary:
Total: 2'068'038 games
played by 2'396 programs
27793 CPU days (X2 4600+)

White wins: 803'434 (38.9%)
Black wins: 650'049 (31.4%)
Draws: 614'555 (29.7%)
White score: 53.7%

Engine Details

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Stockfish 1.4 64-bit 4CPU in CCRL 40/4, 2019-07-17
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 1.4 64-bit 4CPU has no rank with rating of 2975 Elo points (+15 -15),
based on 1596 games: 580 wins, 454 losses and 562 draws
Score: 53.9%, Average opponent: −29.7, Draws: 35.2%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Rybka 3 64-bit 4CPU                3166  21.0-78.0  (+7 -64=28)    0.0   -14
 - Naum 4 64-bit 4CPU                 3062  37.5-61.5  (+14-38=47)    0.0   +11
 - Deep Shredder 12 64-bit 4CPU       3041  78.0-121.0 (+45-88=66)    0.0    -6
 - Rybka 2.2 64-bit 4CPU              3002  42.0-58.0  (+23-39=38)    0.2   -24
 - Zappa Mexico II 64-bit 4CPU        2970  54.5-45.5  (+37-28=35)   73.6   +24
 - Thinker 5.4c Inert 64-bit 4CPU     2952  50.5-49.5  (+29-28=43)   99.8   -18
 - Deep Sjeng WC2008 64-bit 4CPU      2940  49.5-50.5  (+29-30=41)  100.0   -37
 - Hiarcs 12.1 4CPU                   2938  55.0-45.0  (+35-25=40)  100.0    -6
 - Deep Shredder 11 64-bit 4CPU       2932  56.5-43.5  (+38-25=37)  100.0    -3
 - Thinker 5.4a Inert 64-bit 4CPU     2926  61.5-38.5  (+42-19=39)  100.0   +23
 - Glaurung 2.2 64-bit 4CPU           2914  61.0-39.0  (+35-13=52)  100.0    +4
 - Bright 0.4a 4CPU                   2910  60.5-39.5  (+42-21=37)  100.0    +2
 - Loop M1-T 64-bit 4CPU              2881  62.5-36.5  (+48-22=29)  100.0    -4
 - Spike 1.2 Turin                    2731  85.5-14.5  (+76-5 =19)  100.0   +42
 - Scorpio 2.1 64-bit 4CPU            2722  85.5-14.5  (+80-9 =11)  100.0   +56


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