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 8 engines!
8 selected engines played 0 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
Bright 0.4a 4CPU                   2896  +15  -15  47.4%  +17.3  1495
  Bright 0.5c 4CPU                   2891  +23  -23  47.2%  +18.8   616
  Bright 0.3a 4CPU                   2830  +18  -18  42.4%  +50.7   988
  Bright 0.2c 4CPU                   2805  +21  -21  43.9%  +40.4   724
  Bright 0.5c                        2778  +12  -12  45.7%  +26.5  2117
  Bright 0.4a                        2776  +10  -10  46.0%  +26.3  3510
  Bright 0.3a                        2730  +19  -19  46.3%  +23.7   957
  Bright 0.2c                        2663  +26  -26  46.4%  +24.4   513

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