CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Engine Details

Options
Show each game results
Stockfish 1.9.1 64-bit 4CPU in CCRL 40/40, 2017-11-18
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 1.9.1 64-bit 4CPU has no rank with rating of 3116 Elo points (+24 -23),
based on 570 games: 223 wins, 84 losses and 263 draws
Score: 62.2%, Average opponent: −81.5, Draws: 46.1%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Houdini 1.5a 64-bit 4CPU          3193  16.5-32.5  (+4 -20=25)    0.0   -20
 - Rybka 4 64-bit 4CPU               3155  33.0-43.0  (+15-25=36)    0.1     0
 - Rybka 4.1 64-bit 4CPU             3151  11.5-20.5  (+3 -12=17)    0.3   -49
 - Stockfish 1.8 64-bit 4CPU         3109  15.0-18.0  (+3 -6 =24)   67.4   -31
 - Critter 0.90 64-bit 4CPU          3085  19.5-14.5  (+9 -4 =21)   94.9   +10
 - Naum 4.2 64-bit 4CPU              3068  29.5-18.5  (+17-6 =25)  100.0   +20
 - Deep Shredder 12 64-bit 4CPU      3024  26.5-13.5  (+18-5 =17)  100.0   +10
 - Zappa Mexico II 64-bit 4CPU       2973  46.5-19.5  (+29-2 =35)  100.0   -23
 - Deep Sjeng WC2008 64-bit 4CPU     2930  52.5-14.5  (+40-2 =25)  100.0    +3
 - Thinker 5.4c Inert 64-bit 4CPU    2927  63.5-12.5  (+52-1 =23)  100.0   +52
 - Bright 0.5c 4CPU                  2896  40.5-8.5   (+33-1 =15)  100.0   +13


Created in 2005-2013 by CCRL team
Last games added on November 18, 2017