CCRL 40/4
Downloads and Statistics
October 12, 2019
Testing summary:
Total: 2'115'766 games
played by 2'468 programs
28564 CPU days (X2 4600+)

White wins: 821'094 (38.8%)
Black wins: 663'997 (31.4%)
Draws: 630'675 (29.8%)
White score: 53.7%

Engine Details

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Stockfish 200516 64-bit 4CPU in CCRL 40/4, 2019-10-12
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 CPU.
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

CCRL 40/4 main list:
Stockfish 200516 64-bit 4CPU has no rank with rating of 3442 Elo points (+18 -18),
based on 1272 games: 809 wins, 27 losses and 436 draws
Score: 80.7%, Average opponent: −221.1, Draws: 34.3%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Komodo 10 64-bit 4CPU              3430  38.0-38.0  (+13-13=50)   85.8   -10
 - Houdini 4 64-bit 4CPU              3332  60.0-16.0  (+45-1 =30)  100.0   +81
 - Gull 3 64-bit 4CPU                 3261  56.0-18.0  (+38-0 =36)  100.0   -24
 - Fire 4 64-bit 4CPU                 3257  57.5-14.5  (+43-0 =29)  100.0   +11
 - Equinox 3.30 64-bit 4CPU           3254  54.5-17.5  (+39-2 =31)  100.0   -22
 - Critter 1.6a 64-bit 4CPU           3233  62.0-12.0  (+52-2 =20)  100.0   +41
 - Fritz 15 64-bit 4CPU               3224  85.0-19.0  (+67-1 =36)  100.0    +1
 - Andscacs 0.86 64-bit 4CPU          3222  63.0-13.0  (+50-0 =26)  100.0    +7
 - Rybka 4.1 64-bit 4CPU              3206  60.0-14.0  (+48-2 =24)  100.0   -18
 - BlackMamba 2.0 64-bit 4CPU         3198  61.5-14.5  (+48-1 =27)  100.0   -34
 - Fizbo 1.7 64-bit 4CPU              3185  59.5-16.5  (+44-1 =31)  100.0   -73
 - NirvanaChess 2.2 64-bit 4CPU       3183  66.0-10.0  (+56-0 =20)  100.0   +19
 - Hannibal 1.5 64-bit 4CPU           3170  63.0-11.0  (+52-0 =22)  100.0   -17
 - Naum 4.6 64-bit 4CPU               3153  65.0-7.0   (+59-1 =12)  100.0   +55
 - Texel 1.05 64-bit 4CPU             3143  63.5-10.5  (+55-2 =17)  100.0   -20
 - Strelka 5.5 64-bit                 3141  64.5-9.5   (+56-1 =17)  100.0    -9
 - Protector 1.9.0 64-bit 4CPU        3128  48.0-4.0   (+44-0 =8 )  100.0   +62


Created in 2005-2013 by CCRL team
Last games added on October 12, 2019