CCRL 40/40
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 795'341 games
played by 2'045 programs
110322 CPU days (X2 4600+)

White wins: 272'710 (34.3%)
Black wins: 201'857 (25.4%)
Draws: 320'774 (40.3%)
White score: 54.5%

Engine Details

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Show each game results
Stockfish 1.7.1 64-bit 4CPU in CCRL 40/40, 2018-02-17
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, 2005-2018, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Stockfish 1.7.1 64-bit 4CPU has no rank with rating of 3109 Elo points (+19 -19),
based on 844 games: 292 wins, 108 losses and 444 draws
Score: 60.9%, Average opponent: −71.3, Draws: 52.6%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Rybka 4 64-bit 4CPU                3155  35.5-51.5  (+6 -22=59)    0.0    -4
 - Rybka 4.1 64-bit 4CPU              3151  10.0-22.0  (+2 -14=16)    0.0   -70
 - Rybka 3 64-bit 4CPU                3127  64.0-65.0  (+28-29=72)    5.5   +15
 - Stockfish 1.8 64-bit 4CPU          3112  50.5-56.5  (+10-16=81)   41.3   -11
 - Naum 4.2 64-bit 4CPU               3067  30.0-23.0  (+14-7 =32)  100.0    -5
 - Deep Shredder 12 64-bit 4CPU       3024  53.5-24.5  (+32-3 =43)  100.0   +22
 - Deep Fritz 12 4CPU                 2989  33.0-17.0  (+20-4 =26)  100.0   -26
 - Zappa Mexico II 64-bit 4CPU        2973  38.0-15.0  (+25-2 =26)  100.0    -4
 - Komodo 1.2 64-bit                  2950  25.0-8.0   (+19-2 =12)  100.0   +10
 - Spark 0.4 64-bit 4CPU              2938  41.0-12.0  (+30-1 =22)  100.0    +4
 - Onno 1.2.70 64-bit 4CPU            2938   2.0-0.0   (+2 -0 =0 )  100.0  +INF
 - Thinker 5.4d Inert 64-bit 4CPU     2932   2.5-0.5   (+2 -0 =1 )  100.0   +41
 - Deep Sjeng WC2008 64-bit 4CPU      2930  42.0-10.0  (+35-3 =14)  100.0   +46
 - Komodo 1.0 64-bit                  2924  41.0-9.0   (+34-2 =14)  100.0   +47
 - Hiarcs 12.1 4CPU                   2909  46.0-16.0  (+33-3 =26)  100.0   -45


Created in 2005-2013 by CCRL team
Last games added on February 17, 2018