CCRL 40/4
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 2'143'600 games
played by 2'509 programs
29100 CPU days (X2 4600+)

White wins: 830'432 (38.7%)
Black wins: 670'629 (31.3%)
Draws: 642'539 (30.0%)
White score: 53.7%

Custom engine selection

Comparing 4 engines!
4 selected engines played 10 games with each other



CCRL 40/4 Rating List - Custom engine selection
2143600 games played by 2509 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 December 7, 2019 with Bayeselo based on 2'143'600 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Rotor 0.7a                         2618  +15  -14  49.2%   +7.0  1694
  Rotor 0.8                          2612  +10  -10  45.8%  +30.3  3813
  Rotor 0.6                          2573  +12  -12  49.8%   +1.0  2719
  Rotor 0.5                          2535  +13  -14  50.5%   -3.0  2056

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