CCRL 40/40
Downloads and Statistics
February 24, 2018
Testing summary:
Total: 798'040 games
played by 2'050 programs
110768 CPU days (X2 4600+)

White wins: 273'610 (34.3%)
Black wins: 202'540 (25.4%)
Draws: 321'890 (40.3%)
White score: 54.5%

Engine Details

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Stockfish 1.5.1 64-bit in CCRL 40/40, 2018-02-24
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, 2005-2018, 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: −29.7, Draws: 39.2%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Rybka 3 64-bit                     3049   7.5-24.5  (+3 -20=9 )    0.0   -30
 - Naum 4 64-bit                      2956  13.0-19.0  (+6 -12=14)    0.0   +10
 - 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             2857  15.5-16.5  (+5 -6 =21)   98.3   -42
 - 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                    2745  24.0-8.0   (+18-2 =12)  100.0   +19


Created in 2005-2013 by CCRL team
Last games added on February 24, 2018