CCRL 40/4
Downloads and Statistics
August 20, 2019
Testing summary:
Total: 2'086'404 games
played by 2'425 programs
28073 CPU days (X2 4600+)

White wins: 810'229 (38.8%)
Black wins: 655'304 (31.4%)
Draws: 620'871 (29.8%)
White score: 53.7%

Engine Details

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Show each game results
Stockfish 1.7.1 64-bit 4CPU in CCRL 40/4, 2019-08-20
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 1.7.1 64-bit 4CPU has no rank with rating of 3140 Elo points (+13 -13),
based on 2052 games: 1004 wins, 261 losses and 787 draws
Score: 68.1%, Average opponent: −125.2, Draws: 38.4%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Rybka 4 64-bit 4CPU                3198  42.5-58.5  (+20-36=45)    0.0    +8
 - Rybka 3 64-bit 4CPU                3166  29.0-38.0  (+13-22=32)    0.1   -14
 - Stockfish 1.9.1 64-bit 4CPU        3153  50.0-50.0  (+18-18=64)    8.2   +13
 - Stockfish 1.8 64-bit 4CPU          3137  22.0-28.0  (+8 -14=28)   62.7   -39
 - Rybka 4 64-bit                     3101  29.5-20.5  (+16-7 =27)  100.0   +13
 - Naum 4.2 64-bit 4CPU               3098  35.0-30.0  (+20-15=30)  100.0   -19
 - Stockfish 1.6s JA 64-bit 4CPU      3093  37.0-29.0  (+17-9 =40)  100.0   -15
 - Stockfish 1.6.3 64-bit 4CPU        3089  38.5-27.5  (+16-5 =45)  100.0    -6
 - Naum 4.1 64-bit 4CPU               3070  39.0-26.0  (+27-14=24)  100.0    -6
 - Naum 4 64-bit 4CPU                 3062  36.0-29.0  (+22-15=28)  100.0   -45
 - Deep Shredder 12 64-bit 4CPU       3041  41.5-23.5  (+30-12=23)  100.0    -8
 - Critter 0.70 64-bit 4CPU           3036  24.0-11.0  (+16-3 =16)  100.0    +9
 - Deep Fritz 12 4CPU                 3030  32.5-16.5  (+25-9 =15)  100.0    +1
 - Hiarcs 13.1 4CPU                   3009  39.0-11.0  (+32-4 =14)  100.0   +70
 - Spark 0.5 64-bit 4CPU              3000  71.0-29.0  (+50-8 =42)  100.0    -5
 - Spark 0.4 64-bit 4CPU              2988  48.0-16.0  (+36-4 =24)  100.0   +13
 - Zappa Mexico II 64-bit 4CPU        2970  50.5-14.5  (+42-6 =17)  100.0   +30
 - Spark 0.3 64-bit 4CPU              2969  50.5-14.5  (+38-2 =25)  100.0   +11
 - Spark 0.3a 64-bit 4CPU             2962  49.5-15.5  (+39-5 =21)  100.0    +1
 - Onno 1.2.70 64-bit 4CPU            2955  40.0-10.0  (+31-1 =18)  100.0   +18
 - Thinker 5.4c Inert 64-bit 4CPU     2952  48.0-17.0  (+37-6 =22)  100.0   -26
 - Protector 1.3.4 64-bit 4CPU        2952  50.0-14.0  (+39-3 =22)  100.0    +4
 - Deep Junior 11.1a 64-bit 4CPU      2942  49.5-15.5  (+41-7 =17)  100.0    -8
 - Hiarcs 12 4CPU                     2941  47.0-18.0  (+35-6 =24)  100.0   -51
 - Deep Sjeng WC2008 64-bit 4CPU      2940  47.5-17.5  (+38-8 =19)  100.0   -38
 - Hiarcs 12.1 4CPU                   2938  52.0-13.0  (+42-3 =20)  100.0    +9
 - Komodo 1.0 64-bit                  2932  51.5-13.5  (+42-4 =19)  100.0    -1
 - Deep Sjeng 3.0 64-bit 4CPU         2930  52.0-13.0  (+45-6 =14)  100.0   +19
 - Deep Junior 11.2 64-bit 4CPU       2924  40.5-9.5   (+34-3 =13)  100.0   +11
 - Critter 0.60 64-bit 4CPU           2911  42.0-8.0   (+35-1 =14)  100.0   +20
 - Bright 0.5c 4CPU                   2906  56.0-9.0   (+51-4 =10)  100.0   +69
 - Toga II 1.4 beta5c 4CPU            2904  56.5-8.5   (+49-1 =15)  100.0   +51


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