CCRL 40/4
Downloads and Statistics
July 17, 2019
Testing summary:
Total: 2'068'038 games
played by 2'396 programs
27793 CPU days (X2 4600+)

White wins: 803'434 (38.9%)
Black wins: 650'049 (31.4%)
Draws: 614'555 (29.7%)
White score: 53.7%

Custom engine selection

Comparing 8 engines!
8 selected engines played 42 games with each other



CCRL 40/4 Rating List - Custom engine selection
2068038 games played by 2396 programs, run by 21 testers
Ponder off, General books (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.
Computed on July 17, 2019 with Bayeselo based on 2'068'038 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Hedgehog 1.813 64-bit              2143  +35  -34  56.3%  -50.0   316
  Hedgehog 1.814 64-bit              2124  +18  -18  49.4%   +4.2  1183
  Hedgehog 1.9 64-bit                2122  +20  -20  51.7%  -12.1  1036
  Hedgehog 1.82 64-bit               2112  +29  -30  45.6%  +35.9   434
  Hedgehog 1.808                     2035  +34  -34  56.5%  -49.6   321
  Hedgehog 1.806                     1973  +37  -38  46.5%  +25.1   256
  Hedgehog 1.804                     1969  +18  -18  42.8%  +54.6  1144
  Hedgehog 1.802                     1960  +33  -34  38.7%  +89.1   345

Created in 2005-2013 by CCRL team
Last games added on July 17, 2019