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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Ethereal 10.55 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:
Ethereal 10.55 64-bit 4CPU has no rank with rating of 3274 Elo points (+24 -25),
based on 488 games: 103 wins, 105 losses and 280 draws
Score: 49.8%, Average opponent: −1.7, Draws: 57.4%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - SugaR XPrO 1.5.3 64-bit 4CPU      3433   7.0-25.0  (+1 -19=12)    0.0   -30
 - Stockfish 9 64-bit 4CPU           3431   7.5-24.5  (+0 -17=15)    0.0   -10
 - Houdini 6 64-bit 4CPU             3397  12.0-20.0  (+2 -10=20)    0.0   +51
 - Komodo 12 64-bit 4CPU             3395  10.5-21.5  (+0 -11=21)    0.0   +28
 - ShashChess Pro 1.0 64-bit 4CPU    3392   8.5-23.5  (+1 -16=15)    0.0   -29
 - Fire 7.1 64-bit 4CPU              3320  14.0-18.0  (+1 -5 =26)    0.1   +14
 - Deep Shredder 13 64-bit 4CPU      3280  17.0-15.0  (+4 -2 =26)   34.1   +20
 - Fizbo 2 64-bit 4CPU               3276  15.5-16.5  (+6 -7 =19)   45.4    -3
 - Andscacs 0.94 64-bit 4CPU         3264  17.0-15.0  (+8 -6 =18)   75.4    +7
 - Booot 6.3.1 64-bit 4CPU           3260  18.0-14.0  (+8 -4 =20)   83.4   +19
 - Laser 1.6 64-bit 4CPU             3217  18.0-14.0  (+8 -4 =20)  100.0   -20
 - Chiron 4 64-bit 4CPU              3191  20.0-12.0  (+10-2 =20)  100.0   -13
 - Xiphos 0.3 64-bit 4CPU            3178  20.5-11.5  (+9 -0 =23)  100.0   -22
 - Strelka 5.5 64-bit                3103  24.0-8.0   (+18-2 =12)  100.0    -4
 - chess22k 1.10 64-bit 4CPU         3013  33.5-6.5   (+27-0 =13)  100.0   -22


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