CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Engine Details

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Stockfish 1.4 64-bit 4CPU in CCRL 40/40, 2017-11-18
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, 2005-2017, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Stockfish 1.4 64-bit 4CPU has no rank with rating of 2952 Elo points (+17 -17),
based on 1131 games: 375 wins, 279 losses and 477 draws
Score: 54.2%, Average opponent: −29.2, Draws: 42.2%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Rybka 3 64-bit 4CPU               3127  22.0-78.0  (+3 -59=38)    0.0   -11
 - Naum 4 64-bit 4CPU                3050  15.5-32.5  (+5 -22=21)    0.0   -12
 - Cheng 4.39 64-bit 4CPU            3021   5.5-4.5   (+4 -3 =3 )    0.0  +109
 - Fizbo 1.5 64-bit 4CPU             2999   3.0-7.0   (+0 -4 =6 )    0.2   -64
 - Rybka 2.2 64-bit 4CPU             2977  57.0-66.0  (+28-37=58)    2.2    +2
 - Zappa Mexico II 64-bit 4CPU       2973  23.5-38.5  (+12-27=23)    1.5   -53
 - Fizbo 1.4 64-bit 4CPU             2938   3.0-5.0   (+1 -3 =4 )   78.9   -83
 - Arasan 18.0 64-bit 4CPU           2933  10.0-10.0  (+6 -6 =8 )   86.6   -19
 - Spark 0.3 64-bit 4CPU             2932  18.0-14.0  (+11-7 =14)   91.1   +22
 - Deep Sjeng WC2008 64-bit 4CPU     2930  25.5-22.5  (+12-9 =27)   98.1    -3
 - Thinker 5.4c Inert 64-bit 4CPU    2927  25.5-24.5  (+13-12=25)   98.5   -18
 - Deep Shredder 11 64-bit 4CPU      2920  53.5-48.5  (+31-26=45)   99.9   -16
 - Toga II 1.4.1SE 4CPU              2908  29.0-21.0  (+18-10=22)  100.0    +4
 - Hiarcs 12.1 4CPU                  2908  29.5-18.5  (+20-9 =19)  100.0   +27
 - Bright 0.4a 4CPU                  2900  26.0-22.0  (+14-10=24)  100.0   -25
 - Glaurung 2.2 64-bit 4CPU          2900  29.5-18.5  (+15-4 =29)  100.0   +13
 - Hiarcs 12 4CPU                    2896  29.0-19.0  (+22-12=14)  100.0   +16
 - Hiarcs Paderborn 2007 4CPU        2894  32.0-16.0  (+23-7 =18)  100.0   +50
 - Loop M1-T 64-bit 4CPU             2852  34.5-15.5  (+24-5 =21)  100.0   +19
 - Onno 1.0 64-bit                   2819  25.0-7.0   (+19-1 =12)  100.0   +54
 - Crafty 23.0 64-bit 4CPU           2761  40.0-8.0   (+33-1 =14)  100.0   +50
 - Spike 1.2 Turin                   2746  40.5-9.5   (+33-2 =15)  100.0   +14
 - Scorpio 2.0 32-bit 4CPU           2733  36.5-11.5  (+28-3 =17)  100.0   -43


Created in 2005-2013 by CCRL team
Last games added on November 18, 2017