CCRL 40/4
Downloads and Statistics
July 6, 2019
Testing summary:
Total: 2'062'148 games
played by 2'380 programs
27711 CPU days (X2 4600+)

White wins: 801'254 (38.9%)
Black wins: 648'494 (31.4%)
Draws: 612'400 (29.7%)
White score: 53.7%

Engine Details

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Stockfish 251115 64-bit 4CPU in CCRL 40/4, 2019-07-06
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 251115 64-bit 4CPU has no rank with rating of 3421 Elo points (+17 -17),
based on 1208 games: 595 wins, 89 losses and 524 draws
Score: 70.9%, Average opponent: −145.0, Draws: 43.4%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Komodo 10 64-bit 4CPU              3430  38.0-44.0  (+14-20=48)   20.8   -10
 - Komodo 9.2 64-bit 4CPU             3412  53.0-47.0  (+21-15=64)   75.8    +8
 - Komodo 9.3 64-bit 4CPU             3406  52.5-33.5  (+30-11=45)   88.5   +48
 - Komodo 9.42 64-bit 4CPU            3403  56.0-48.0  (+25-17=62)   93.7    +4
 - Houdini 4 64-bit 4CPU              3332  42.5-31.5  (+25-14=35)  100.0   -44
 - Gull 3 64-bit 4CPU                 3260  53.5-20.5  (+35-2 =37)  100.0   -24
 - Fire 4 64-bit 4CPU                 3256  58.0-16.0  (+42-0 =32)  100.0   +17
 - Equinox 3.30 64-bit 4CPU           3253  56.5-17.5  (+41-2 =31)  100.0     0
 - Critter 1.6a 64-bit 4CPU           3232  57.0-17.0  (+44-4 =26)  100.0    -7
 - Fritz 15 64-bit 4CPU               3224  78.0-18.0  (+60-0 =36)  100.0   +13
 - Rybka 4.1 64-bit 4CPU              3206  59.5-14.5  (+46-1 =27)  100.0    -9
 - Hannibal 1.5 64-bit 4CPU           3169  61.0-13.0  (+49-1 =24)  100.0   -25
 - Naum 4.6 64-bit 4CPU               3152  64.0-10.0  (+55-1 =18)  100.0   +11
 - Texel 1.05 64-bit 4CPU             3143  64.5-9.5   (+55-0 =19)  100.0    +4
 - Strelka 5.5 64-bit                 3141  63.0-11.0  (+53-1 =20)  100.0   -17


Created in 2005-2013 by CCRL team
Last games added on July 6, 2019