CCRL 40/4
Downloads and Statistics
August 24, 2019
Testing summary:
Total: 2'089'528 games
played by 2'430 programs
28120 CPU days (X2 4600+)

White wins: 811'498 (38.8%)
Black wins: 656'361 (31.4%)
Draws: 621'669 (29.8%)
White score: 53.7%

Custom engine selection

Comparing 6 engines!
6 selected engines played 0 games with each other



CCRL 40/4 Rating List - Custom engine selection
2089528 games played by 2430 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 Intel CPU.
Computed on August 24, 2019 with Bayeselo based on 2'089'528 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Myrddin 0.87 64-bit 4CPU           2458  +29  -29  51.9%  -13.1   420
  Myrddin 0.87 64-bit                2380  +12  -12  49.1%   +7.1  2486
  Myrddin 0.86 64-bit                2366  +15  -15  48.3%  +12.4  1724
  Myrddin 0.85 64-bit                2236  +16  -16  50.8%   -6.9  1522
  Myrddin 0.83k 64-bit               2083  +17  -17  51.3%  -10.4  1278
  Myrddin 0.82 32-bit                1916  +19  -19  37.1% +111.3  1173

Created in 2005-2013 by CCRL team
Last games added on August 24, 2019