CCRL 40/40
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 1'104'002 games
played by 2'573 programs
150928 CPU days (X2 4600+)

White wins: 382'601 (34.7%)
Black wins: 284'129 (25.7%)
Draws: 437'272 (39.6%)
White score: 54.5%

Custom engine selection

Comparing 9 engines!
9 selected engines played 34 games with each other



CCRL 40/40 Rating List - Custom engine selection
1104002 games played by 2573 programs, run by 23 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern CPU.
Computed on December 7, 2019 with Bayeselo based on 1'104'002 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Winter 0.6 64-bit 4CPU             3023  +35  -34  56.1%  -48.5   293
  Winter 0.7 64-bit                  3006  +23  -23  51.7%  -10.7   575
  Winter 0.5 64-bit 4CPU             2963  +26  -26  50.4%   -5.2   470
  Winter 0.6 64-bit                  2927  +18  -18  50.1%   -2.1  1011
  Winter 0.5 64-bit                  2893  +17  -17  51.8%  -11.7  1177
  Winter 0.4a 64-bit                 2832  +24  -24  48.0%  +10.2   552
  Winter 0.3 64-bit                  2764  +25  -25  48.3%  +10.9   543
  Winter 0.2 64-bit                  2654  +17  -17  54.2%  -36.4  1374
  Winter 0.1.1 64-bit                2494  +21  -21  49.8%   +0.0   764

Created in 2005-2013 by CCRL team
Last games added on December 7, 2019