CCRL 40/4
Downloads and Statistics
August 10, 2019
Testing summary:
Total: 2'081'140 games
played by 2'415 programs
27982 CPU days (X2 4600+)

White wins: 808'296 (38.8%)
Black wins: 653'685 (31.4%)
Draws: 619'159 (29.8%)
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
2081140 games played by 2415 programs, run by 21 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 10, 2019 with Bayeselo based on 2'081'140 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Rotor 0.7a                         2618  +15  -14  49.2%   +6.6  1694
  Rotor 0.8                          2612  +10  -10  45.9%  +29.2  3777
  Rotor 0.6                          2573  +12  -12  49.8%   +0.5  2719
  Rotor 0.5                          2535  +13  -14  50.5%   -3.5  2056

Created in 2005-2013 by CCRL team
Last games added on August 10, 2019