CCRL 40/4
Downloads and Statistics
October 19, 2019
Testing summary:
Total: 2'120'567 games
played by 2'479 programs
28673 CPU days (X2 4600+)

White wins: 822'832 (38.8%)
Black wins: 665'262 (31.4%)
Draws: 632'473 (29.8%)
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
2120567 games played by 2479 programs, run by 22 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 CPU.
Computed on October 19, 2019 with Bayeselo based on 2'120'567 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Hedgehog 1.813 64-bit              2141  +35  -34  56.3%  -49.6   316
  Hedgehog 1.814 64-bit              2125  +18  -18  49.6%   +2.7  1214
  Hedgehog 1.9 64-bit                2123  +19  -19  51.5%  -10.9  1068
  Hedgehog 1.82 64-bit               2113  +29  -30  45.6%  +35.0   434
  Hedgehog 1.808                     2035  +34  -34  56.5%  -49.5   321
  Hedgehog 1.806                     1973  +38  -38  46.5%  +25.4   256
  Hedgehog 1.804                     1969  +18  -18  42.8%  +54.4  1144
  Hedgehog 1.802                     1959  +33  -34  38.7%  +89.1   345

Created in 2005-2013 by CCRL team
Last games added on October 19, 2019