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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Show each game results
Stockfish 1.5.1 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 1.5.1 64-bit has no rank with rating of 2889 Elo points (+28 -28),
based on 416 games: 146 wins, 107 losses and 163 draws
Score: 54.7%, Average opponent: −29.3, Draws: 39.2%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Rybka 3 64-bit                    3051   7.5-24.5  (+3 -20=9 )    0.0   -28
 - Naum 4 64-bit                     2957  13.0-19.0  (+6 -12=14)    0.0   +11
 - Deep Shredder 12 64-bit           2942  24.5-39.5  (+12-27=25)    0.0   -23
 - Thinker 5.4c Inert 64-bit         2861  19.0-13.0  (+14-8 =10)   96.5   +35
 - Zappa Mexico II 64-bit            2858  15.5-16.5  (+5 -6 =21)   98.2   -41
 - Deep Sjeng WC2008 64-bit          2836  17.5-14.5  (+9 -6 =17)  100.0   -24
 - Grapefruit 1.0 32-bit             2826  22.0-10.0  (+16-4 =12)  100.0   +59
 - Hiarcs 12.1                       2818  18.5-13.5  (+12-7 =13)  100.0   -23
 - Onno 1.1.1 64-bit                 2810  20.0-12.0  (+15-7 =10)  100.0    +7
 - Bright 0.4a                       2776  23.5-8.5   (+18-3 =11)  100.0   +45
 - Ktulu 9                           2753  22.5-9.5   (+18-5 =9 )  100.0    +3
 - Spike 1.2 Turin                   2746  24.0-8.0   (+18-2 =12)  100.0   +20


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