CCRL 40/4
Downloads and Statistics
June 25, 2019
Testing summary:
Total: 2'055'166 games
played by 2'374 programs
27559 CPU days (X2 4600+)

White wins: 798'582 (38.9%)
Black wins: 646'405 (31.5%)
Draws: 610'179 (29.7%)
White score: 53.7%

Engine Details

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Stockfish 071017 64-bit in CCRL 40/4, 2019-06-25
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Stockfish 071017 64-bit has no rank with rating of 3454 Elo points (+16 -16),
based on 1357 games: 618 wins, 105 losses and 634 draws
Score: 68.9%, Average opponent: −148.7, Draws: 46.7%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Stockfish 9 64-bit                 3483  45.5-54.5  (+11-20=69)    0.1    +4
 - asmFish 191017 64-bit              3451  24.0-26.0  (+4 -6 =40)   62.2   -12
 - SugaR XPrO 1.3 64-bit              3449  50.5-58.5  (+4 -12=93)   67.7   -24
 - Houdini 6 64-bit                   3447  77.5-72.5  (+30-25=95)   79.3    +2
 - SugaR XPrO 1.2 64-bit              3443  54.0-56.0  (+9 -11=90)   86.5   -15
 - Komodo 11.2 64-bit                 3422  87.0-62.0  (+46-21=82)  100.0   +18
 - Fire 6.1 64-bit                    3289  37.5-12.5  (+25-0 =25)  100.0   -13
 - Shredder 13 64-bit                 3271  37.0-13.0  (+27-3 =20)  100.0   -26
 - Fizbo 1.9 64-bit                   3237  37.0-12.0  (+28-3 =18)  100.0   -48
 - Andscacs 0.92 64-bit               3202  41.5-7.5   (+34-0 =15)  100.0     0
 - Gull 3 64-bit                      3192  39.0-9.0   (+30-0 =18)  100.0   -48
 - Booot 6.2 64-bit                   3169  43.5-6.5   (+38-1 =11)  100.0    +7
 - Chiron 4 64-bit                    3165  45.5-4.5   (+41-0 =9 )  100.0   +57
 - Critter 1.6a 64-bit                3158  45.0-5.0   (+41-1 =8 )  100.0   +48
 - Fritz 15 64-bit                    3145  47.5-2.5   (+45-0 =5 )  100.0  +141
 - NirvanaChess 2.4 64-bit            3131  39.0-5.0   (+34-0 =10)  100.0   -14
 - Texel 1.07 64-bit                  3115  46.5-3.5   (+43-0 =7 )  100.0   +53
 - Hannibal 1.7 64-bit                3111  46.5-3.5   (+44-1 =5 )  100.0   +73
 - Protector 1.9.0 64-bit             3085  47.0-3.0   (+45-1 =4 )  100.0   +78
 - iCE 3.0 64-bit                     3082  44.0-5.0   (+39-0 =10)  100.0   -45


Created in 2005-2013 by CCRL team
Last games added on June 25, 2019