CCRL 40/40
Downloads and Statistics
April 21, 2018
Testing summary:
Total: 821'008 games
played by 2'134 programs
114427 CPU days (X2 4600+)

White wins: 281'674 (34.3%)
Black wins: 208'551 (25.4%)
Draws: 330'783 (40.3%)
White score: 54.5%

Engine Details

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Show each game results
Stockfish 1.7.1 64-bit in CCRL 40/40, 2018-04-21
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 1.7.1 64-bit has no rank with rating of 3010 Elo points (+22 -22),
based on 669 games: 264 wins, 113 losses and 292 draws
Score: 61.3%, Average opponent: −74.7, Draws: 43.6%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 1.5a 64-bit                3119   6.0-18.0  (+2 -14=8 )    0.0   -59
 - Rybka 4.1 64-bit                   3081   9.5-14.5  (+2 -7 =15)    0.0   +17
 - Rybka 4 64-bit                     3080  15.5-24.5  (+6 -15=19)    0.0     0
 - Rybka 3 64-bit                     3049  32.0-32.0  (+17-17=30)    0.1   +39
 - Nemorino 4.00 64-bit               3046   5.0-5.0   (+2 -2 =6 )    1.1   +39
 - Rybka 3 Dynamic 64-bit             3019   2.5-1.5   (+1 -0 =3 )   32.5   +76
 - Naum 4.2 64-bit                    2978  23.5-16.5  (+13-6 =21)   99.6   +19
 - Stockfish 1.6.3 64-bit             2966   5.5-2.5   (+3 -0 =5 )   99.9   +60
 - Rybka 2.3.2a 64-bit                2962  19.0-14.0  (+13-8 =12)  100.0     0
 - Komodo 1.2 64-bit                  2948  23.5-16.5  (+16-9 =15)  100.0    -5
 - Deep Shredder 12 64-bit            2942  33.0-27.0  (+18-12=30)  100.0   -38
 - Komodo 1.0 64-bit                  2922  36.0-21.0  (+22-7 =28)  100.0    -8
 - Critter 0.70 64-bit                2918  15.5-8.5   (+10-3 =11)  100.0    -4
 - Fritz 12                           2886   4.0-3.0   (+1 -0 =6 )  100.0   -92
 - Thinker 5.4d Inert 64-bit          2864   1.5-0.5   (+1 -0 =1 )  100.0    -3
 - Thinker 5.4c Inert 64-bit          2861  11.0-5.0   (+7 -1 =8 )  100.0   -35
 - Zappa Mexico II 64-bit             2857  23.5-8.5   (+17-2 =13)  100.0     0
 - Protector 1.3.4 64-bit             2840  21.5-7.5   (+17-3 =9 )  100.0    -3
 - Deep Sjeng WC2008 64-bit           2836  18.5-4.5   (+15-1 =7 )  100.0   +40
 - Critter 0.60 64-bit                2836  19.0-6.0   (+13-0 =12)  100.0   -13
 - Spark 0.3 64-bit                   2835  29.0-5.0   (+26-2 =6 )  100.0  +114
 - Grapefruit 1.0 32-bit              2826   2.0-0.0   (+2 -0 =0 )  100.0  +INF
 - Protector 1.3.4 32-bit             2824  10.0-6.0   (+6 -2 =8 )  100.0  -112
 - Deep Junior 11.1a 64-bit           2823   9.0-2.0   (+8 -1 =2 )  100.0   +68
 - Hiarcs 12.1                        2817  16.5-6.5   (+11-1 =11)  100.0   -63
 - Bright 0.5c                        2778   2.0-0.0   (+2 -0 =0 )  100.0  +INF
 - Twisted Logic 20100131x 64-bit     2764   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Spike 1.2 Turin                    2745  14.0-3.0   (+11-0 =6 )  100.0   -39
 - Bison 9.11 32-bit                  2727   1.0-0.0   (+1 -0 =0 )  100.0  +INF


Created in 2005-2013 by CCRL team
Last games added on April 21, 2018