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 270918 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 270918 64-bit 4CPU has no rank with rating of 3453 Elo points (+28 -27),
based on 457 games: 257 wins, 2 losses and 198 draws
Score: 77.9%, Average opponent: −188.7, Draws: 43.3%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Komodo 11.3.1 64-bit 4CPU         3400  20.0-12.0  (+8 -0 =24)   99.9   +12
 - Houdini 6 64-bit 4CPU             3397  17.5-14.5  (+4 -1 =27)  100.0   -33
 - Fire 7.1 64-bit 4CPU              3320  24.5-7.5   (+17-0 =15)  100.0   +33
 - Ethereal 11.00 64-bit 4CPU        3299  22.0-10.0  (+12-0 =20)  100.0   -47
 - Deep Shredder 13 64-bit 4CPU      3280  24.0-8.0   (+17-1 =14)  100.0   -17
 - Fizbo 2 64-bit 4CPU               3276  25.5-7.5   (+18-0 =15)  100.0    -5
 - Andscacs 0.94 64-bit 4CPU         3264  28.5-7.5   (+21-0 =15)  100.0     0
 - Booot 6.3.1 64-bit 4CPU           3260  26.0-8.0   (+18-0 =16)  100.0   -26
 - Xiphos 0.4 64-bit 4CPU            3250  26.0-6.0   (+20-0 =12)  100.0    +6
 - Laser 1.6 64-bit 4CPU             3217  25.5-6.5   (+19-0 =13)  100.0   -43
 - Fritz 16 64-bit 4CPU              3192  29.0-3.0   (+26-0 =6 )  100.0   +79
 - Chiron 4 64-bit 4CPU              3191  29.5-2.5   (+27-0 =5 )  100.0  +110
 - NirvanaChess 2.4 64-bit 4CPU      3180  29.0-3.0   (+26-0 =6 )  100.0   +67
 - Gull 3 64-bit 4CPU                3180  29.0-5.0   (+24-0 =10)  100.0   -16


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