CCRL 40/4
Downloads and Statistics
August 20, 2019
Testing summary:
Total: 2'086'404 games
played by 2'425 programs
28073 CPU days (X2 4600+)

White wins: 810'229 (38.8%)
Black wins: 655'304 (31.4%)
Draws: 620'871 (29.8%)
White score: 53.7%

Custom engine selection

Comparing 8 engines!
8 selected engines played 0 games with each other



CCRL 40/4 Rating List - Custom engine selection
2086404 games played by 2425 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 20, 2019 with Bayeselo based on 2'086'404 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Chess4j 3.5 64-bit                 1991  +21  -21  50.1%   +0.0   811
  Chess4j 3.4.1 64-bit               1964  +18  -18  48.2%  +12.4  1131
  Chess4j 3.2 64-bit                 1956  +15  -15  49.0%   +8.4  1765
  Chess4j 3.1 64-bit                 1846  +37  -37  50.0%   -1.8   254
  Chess4j 3.0 64-bit                 1805  +20  -20  48.6%   +9.0   895
  Chess4j 2.0                        1622  +36  -37  29.2% +171.5   327
  Chess4j 1.2                         833 +272 -267  52.7%  +79.7  1486
  Chess4j 0.1                         751 +355 -350  29.7% +257.7   713

Created in 2005-2013 by CCRL team
Last games added on August 20, 2019