CCRL 40/4
Downloads and Statistics
February 24, 2018
Testing summary:
Total: 1'678'109 games
played by 1'987 programs
22549 CPU days (X2 4600+)

White wins: 655'541 (39.1%)
Black wins: 532'608 (31.7%)
Draws: 489'960 (29.2%)
White score: 53.7%

Engine Details

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Stockfish DD 64-bit 4CPU in CCRL 40/4, 2018-02-24
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, 2005-2018, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Stockfish DD 64-bit 4CPU has no rank with rating of 3311 Elo points (+15 -15),
based on 1559 games: 709 wins, 190 losses and 660 draws
Score: 66.6%, Average opponent: −122.5, Draws: 42.3%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 4 64-bit 4CPU              3333  74.0-76.0  (+31-33=86)    0.5   +18
 - Komodo 7a 64-bit 4CPU              3322  99.5-100.5 (+47-48=105)   14.6    +8
 - Komodo TCEC 64-bit 4CPU            3288  74.5-71.5  (+37-34=75)   98.8   -17
 - Stockfish 4 64-bit 4CPU            3270  28.5-21.5  (+12-5 =33)  100.0    -1
 - Gull 3 64-bit 4CPU                 3262  24.0-23.0  (+12-11=24)  100.0   -40
 - Gull 2.8b 64-bit 4CPU              3258  33.5-16.5  (+23-6 =21)  100.0   +55
 - Komodo 6 64-bit 4CPU               3252  31.0-19.0  (+17-5 =28)  100.0    +8
 - Gull 2.3 64-bit 4CPU               3245  27.5-22.5  (+13-8 =29)  100.0   -38
 - Houdini 4 64-bit                   3242  27.5-22.5  (+16-11=23)  100.0   -37
 - Critter 1.6a 64-bit 4CPU           3235  28.0-21.0  (+15-8 =26)  100.0   -32
 - Fire 3.0 64-bit 4CPU               3217  49.5-19.5  (+35-5 =29)  100.0   +43
 - Rybka 4.1 64-bit 4CPU              3207  38.0-12.0  (+30-4 =16)  100.0   +75
 - Chiron 2 64-bit 4CPU               3121  38.5-10.5  (+30-2 =17)  100.0    +5
 - Hannibal 1.4b 64-bit 4CPU          3119  38.5-11.5  (+28-1 =21)  100.0   -17
 - Naum 4.2 64-bit 4CPU               3099  42.0-7.0   (+35-0 =14)  100.0   +50
 - Senpai 1.0 64-bit 4CPU             3098  42.0-8.0   (+36-2 =12)  100.0   +44
 - Protector 1.5.0 64-bit 4CPU        3088  37.5-12.5  (+27-2 =21)  100.0   -62
 - Deep Shredder 12 64-bit 4CPU       3042  42.5-7.5   (+35-0 =15)  100.0   -16
 - Spike 1.4 Leiden 4CPU              3038  42.0-8.0   (+35-1 =14)  100.0   -22
 - Spark 1.0 64-bit 4CPU              3028  44.0-6.0   (+39-1 =10)  100.0   +26
 - Deep Junior Yokohama 64-bit 4CPU   3026  43.0-7.0   (+37-1 =12)  100.0    -8
 - Zappa Mexico II 64-bit 4CPU        2971  43.5-6.5   (+37-0 =13)  100.0   -59
 - Deep Sjeng WC2008 64-bit 4CPU      2941  46.0-4.0   (+43-1 =6 )  100.0   +20
 - Toga II 3.0 4CPU                   2932  44.0-6.0   (+39-1 =10)  100.0   -71


Created in 2005-2013 by CCRL team
Last games added on February 24, 2018