CCRL 40/40
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 1'075'629 games
played by 2'520 programs
147029 CPU days (X2 4600+)

White wins: 373'444 (34.7%)
Black wins: 277'846 (25.8%)
Draws: 424'339 (39.5%)
White score: 54.4%

Engine Details

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Stockfish DD 64-bit 4CPU in CCRL 40/40, 2019-08-17
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, 2005-2019, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Stockfish DD 64-bit 4CPU has no rank with rating of 3234 Elo points (+17 -17),
based on 992 games: 354 wins, 87 losses and 551 draws
Score: 63.5%, Average opponent: −80.7, Draws: 55.5%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Houdini 4 64-bit 4CPU             3242  55.0-43.0  (+29-17=52)   23.3   +43
 - Houdini 4 Tactical 64-bit 4CPU    3231  17.5-16.5  (+7 -6 =21)   58.4    +1
 - Komodo 7a 64-bit 4CPU             3228  45.0-37.0  (+18-10=54)   70.8   +19
 - Komodo TCEC 64-bit 4CPU           3220  57.5-46.5  (+23-12=69)   88.0   +14
 - Komodo 6 64-bit 4CPU              3211  19.5-14.5  (+8 -3 =23)   97.5   +13
 - Gull 3 64-bit 4CPU                3180  17.0-13.0  (+9 -5 =16)  100.0   -14
 - Gull 2.8b 64-bit 4CPU             3179   1.0-1.0   (+0 -0 =2 )  100.0   -55
 - Critter 1.6a 64-bit 4CPU          3159  28.5-25.5  (+9 -6 =39)  100.0   -61
 - Fire 3.0 64-bit 4CPU              3150  22.5-11.5  (+11-0 =23)  100.0    +1
 - Bouquet 1.8 64-bit 4CPU           3149  27.5-14.5  (+17-4 =21)  100.0    +5
 - Rybka 4 64-bit 4CPU               3147  23.5-10.5  (+16-3 =15)  100.0   +30
 - Rybka 4.1 64-bit 4CPU             3144  33.5-18.5  (+19-4 =29)  100.0    -5
 - Gull 2.3 64-bit 4CPU              3142  51.0-38.0  (+23-10=56)  100.0   -51
 - DeepSaros 4.1.6 64-bit 4CPU       3128   1.5-0.5   (+1 -0 =1 )  100.0   +36
 - BlackMamba 2.0 64-bit 4CPU        3123   1.5-0.5   (+1 -0 =1 )  100.0   +46
 - Sting SF 4 64-bit 4CPU            3095  22.0-10.0  (+14-2 =16)  100.0   -25
 - Chiron 2 64-bit 4CPU              3085  71.0-21.0  (+53-3 =36)  100.0   +29
 - Hannibal 1.4b 64-bit 4CPU         3077  29.0-13.0  (+17-1 =24)  100.0   -47
 - Deep Fritz 14 64-bit 4CPU         3072  24.0-6.0   (+18-0 =12)  100.0   +35
 - Naum 4.2 64-bit 4CPU              3061  33.5-8.5   (+26-1 =15)  100.0   +29
 - Protector 1.5.0 64-bit 4CPU       3056   2.0-0.0   (+2 -0 =0 )  100.0  +INF
 - Hiarcs 14 4CPU                    3054   2.0-0.0   (+2 -0 =0 )  100.0  +INF
 - Deep Junior Yokohama 64-bit 4CPU  3025  39.0-13.0  (+26-0 =26)  100.0   -58
 - Deep Shredder 12 64-bit 4CPU      3018   2.0-0.0   (+2 -0 =0 )  100.0  +INF
 - Spike 1.4 Leiden 4CPU             3016   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Texel 1.03 64-bit 4CPU            3010   2.0-0.0   (+2 -0 =0 )  100.0  +INF


Created in 2005-2013 by CCRL team
Last games added on August 17, 2019