CCRL 40/4
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 1'671'765 games
played by 1'982 programs
22445 CPU days (X2 4600+)

White wins: 653'018 (39.1%)
Black wins: 530'657 (31.7%)
Draws: 488'090 (29.2%)
White score: 53.7%

Engine Details

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Houdini 6 64-bit 4CPU in CCRL 40/4, 2018-02-17
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, 2005-2018, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Houdini 6 64-bit 4CPU is #2 with rating of 3533 Elo points (+13 -12),
based on 2360 games: 1127 wins, 144 losses and 1089 draws
Score: 70.8%, Average opponent: −153.8, Draws: 46.1%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Stockfish 9 64-bit 4CPU            3560  81.0-87.0  (+22-28=118)    0.1   +17
 - Stockfish 130118 64-bit 4CPU       3542  38.5-40.5  (+10-12=57)   30.1    +2
 - SugaR XPrO 1.2 64-bit 4CPU         3537  51.5-58.5  (+12-19=79)   34.5   -13
 - asmFish 191017 64-bit 4CPU         3532  46.5-53.5  (+9 -16=75)   55.8   -19
 - SugaR XPrO 1.3 64-bit 4CPU         3513  26.5-22.5  (+10-6 =33)   92.9    +2
 - Komodo 11.2 64-bit 4CPU            3513  70.5-62.5  (+22-14=97)   97.9    -5
 - Stockfish 8 64-bit 4CPU            3498 131.0-111.0 (+46-26=170)  100.0   -12
 - Komodo 10.4 64-bit 4CPU            3476  61.0-37.0  (+32-8 =58)  100.0   +13
 - Fire 6.1 64-bit 4CPU               3353 151.0-27.0  (+125-1 =52)  100.0   +74
 - Fizbo 2 64-bit 4CPU                3342  76.5-22.5  (+55-1 =43)  100.0   -15
 - Fire 5 64-bit 4CPU                 3338  80.0-24.0  (+57-1 =46)  100.0   -24
 - Deep Shredder 13 64-bit 4CPU       3324  30.5-9.5   (+22-1 =17)  100.0   -42
 - Fizbo 1.9 64-bit 4CPU              3323 156.5-37.5  (+125-6 =63)  100.0    +5
 - Andscacs 0.91 64-bit 4CPU          3278  86.5-17.5  (+70-1 =33)  100.0   -19
 - Gull 3 64-bit 4CPU                 3263  90.5-11.5  (+79-0 =23)  100.0   +37
 - Booot 6.2 64-bit 4CPU              3258  84.5-17.5  (+67-0 =35)  100.0   -47
 - Equinox 3.30 64-bit 4CPU           3253  85.5-16.5  (+70-1 =31)  100.0   -37
 - Chiron 4 64-bit 4CPU               3239  89.0-13.0  (+76-0 =26)  100.0    -9
 - Critter 1.6a 64-bit 4CPU           3235  91.5-10.5  (+82-1 =19)  100.0   +32
 - Strelka 5.5 64-bit                 3141 143.0-9.0   (+136-2 =14)  100.0   +47


Created in 2005-2013 by CCRL team
Last games added on February 17, 2018