CCRL 40/40
Downloads and Statistics
December 9, 2017
Testing summary:
Total: 766'023 games
played by 1'997 programs
104955 CPU days (X2 4600+)

White wins: 262'896 (34.3%)
Black wins: 194'802 (25.4%)
Draws: 308'325 (40.3%)
White score: 54.4%

Engine Details

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Stockfish 1.8 64-bit in CCRL 40/40, 2017-12-09
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, 2005-2017, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Stockfish 1.8 64-bit has no rank with rating of 3025 Elo points (+25 -24),
based on 563 games: 261 wins, 68 losses and 234 draws
Score: 67.1%, Average opponent: −116.1, Draws: 41.6%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Rybka 4 64-bit                    3080   9.5-14.5  (+4 -9 =11)    0.0    -9
 - Texel 1.07 64-bit                 3068   7.0-5.0   (+5 -3 =4 )    0.6   +97
 - Protector 1.9.0 64-bit            3063   2.5-7.5   (+0 -5 =5 )    0.2  -113
 - Rybka 3 64-bit                    3051  10.5-13.5  (+5 -8 =11)    3.2   -11
 - Sting SF 8.5 64-bit               3042   5.0-5.0   (+0 -0 =10)   19.3   +17
 - Andscacs 0.83 64-bit              3014   5.0-5.0   (+2 -2 =6 )   71.2   -11
 - SmarThink 1.97 64-bit             2994   6.0-4.0   (+4 -2 =4 )   97.5   +35
 - Naum 4.2 64-bit                   2979  20.5-11.5  (+12-3 =17)  100.0   +35
 - Critter 0.80 64-bit               2967  30.5-25.5  (+16-11=29)  100.0   -31
 - Komodo 1.2 64-bit                 2950  21.5-9.5   (+14-2 =15)  100.0   +44
 - Deep Shredder 12 64-bit           2942  20.0-12.0  (+13-5 =14)  100.0    -6
 - Gull 0.12a 64-bit                 2911  15.5-8.5   (+10-3 =11)  100.0   -25
 - Hiarcs 13.1                       2875  18.0-6.0   (+12-0 =12)  100.0     0
 - Thinker 5.4c Inert 64-bit         2861  24.5-7.5   (+20-3 =9 )  100.0   +26
 - Zappa Mexico II 64-bit            2858  21.0-11.0  (+15-5 =12)  100.0   -66
 - Protector 1.3.6 64-bit            2851  20.5-3.5   (+17-0 =7 )  100.0   +84
 - Onno 1.2.70 64-bit                2838  18.5-5.5   (+14-1 =9 )  100.0    -5
 - Deep Sjeng WC2008 64-bit          2836  26.0-6.0   (+21-1 =10)  100.0   +30
 - Deep Junior 11.2 64-bit           2829  19.0-5.0   (+16-2 =6 )  100.0   +20
 - Protector 1.3.4 32-bit            2826  21.5-10.5  (+13-2 =17)  100.0   -97
 - Hiarcs 12.1                       2818  28.0-4.0   (+24-0 =8 )  100.0   +80
 - Spike 1.2 Turin                   2746  27.5-4.5   (+24-1 =7 )  100.0    +4


Created in 2005-2013 by CCRL team
Last games added on December 9, 2017