CCRL 40/40
Downloads and Statistics
September 21, 2019
Testing summary:
Total: 1'084'933 games
played by 2'536 programs
148136 CPU days (X2 4600+)

White wins: 376'624 (34.7%)
Black wins: 280'046 (25.8%)
Draws: 428'263 (39.5%)
White score: 54.5%

Engine Details

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Stockfish 3 64-bit 4CPU in CCRL 40/40, 2019-09-21
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 3 64-bit 4CPU has no rank with rating of 3167 Elo points (+21 -21),
based on 663 games: 180 wins, 100 losses and 383 draws
Score: 56.0%, Average opponent: −35.7, Draws: 57.8%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 3 64-bit 4CPU              3232  24.5-31.5  (+13-20=23)    0.0   +26
 - Komodo 5.1 64-bit 4CPU             3200  49.0-64.0  (+12-27=74)    0.6    -1
 - Critter 1.6a 64-bit 4CPU           3160  31.5-24.5  (+13-6 =37)   73.2   +26
 - Rybka 4.1 64-bit 4CPU              3145  30.0-26.0  (+14-10=32)   97.1    -1
 - Komodo CCT 64-bit                  3126  16.0-14.0  (+8 -6 =16)   99.9   -23
 - Vitruvius 1.11C 64-bit 4CPU        3119  16.0-16.0  (+5 -5 =22)  100.0   -46
 - IvanHoe 9.46h 64-bit 4CPU          3114  20.0-12.0  (+10-2 =20)  100.0   +16
 - RobboLito 0.21Q 64-bit 4CPU        3112  18.5-14.5  (+8 -4 =21)  100.0   -22
 - Bouquet 1.6 64-bit 4CPU            3109  20.5-11.5  (+12-3 =17)  100.0   +25
 - Sting SF 3 64-bit 4CPU             3109  21.0-11.0  (+11-1 =20)  100.0   +27
 - Strelka 5.5 64-bit                 3104  19.5-10.5  (+11-2 =17)  100.0   +23
 - Gull 2.2 64-bit 4CPU               3098  17.0-13.0  (+8 -4 =18)  100.0   -29
 - Naum 4.2 64-bit 4CPU               3061  35.0-18.0  (+21-4 =28)  100.0   -12
 - Protector 1.5.0 64-bit 4CPU        3056   1.5-0.5   (+1 -0 =1 )  100.0   +31
 - Hiarcs 14 4CPU                     3054  22.5-10.5  (+14-2 =17)  100.0    -2
 - Chiron 1.5 64-bit 4CPU             3047   1.0-1.0   (+1 -1 =0 )  100.0  -120
 - Gull R375 64-bit 4CPU              3039   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Deep Fritz 13 4CPU                 3035  20.5-9.5   (+12-1 =17)  100.0   -27
 - Hannibal 1.3 64-bit 4CPU           3034   2.5-0.5   (+2 -0 =1 )  100.0   +85
 - Deep Junior 13.3 64-bit 4CPU       3019   1.5-0.5   (+1 -0 =1 )  100.0    -5
 - Deep Shredder 12 64-bit 4CPU       3019   0.0-1.0   (+0 -1 =0 )  100.0  -INF
 - Spike 1.4 Leiden 4CPU              3017   1.5-0.5   (+1 -0 =1 )  100.0    +7
 - Zappa Mexico II 64-bit 4CPU        2970   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Toga II 3.0 4CPU                   2919   0.0-1.0   (+0 -1 =0 )  100.0  -INF


Created in 2005-2013 by CCRL team
Last games added on September 21, 2019