KCEC
(Kirr's Chess Engine Comparison)
A tournament of original free chess engines
June 16, 2013
Testing summary:
Total: 135,679 games
played by 202 programs
1398 CPU days (X2 4600+)

White wins: 55,227 (40.7%)
Black wins: 47,434 (35.0%)
Draws: 33,018 (24.3%)
White score: 52.9%

Custom engine selection

Comparing 13 engines!
13 selected engines played 400 games with each other



KCEC Rating List - Custom engine selection
135679 games played by 202 programs, run by 1 testers
Ponder off, neutral books (up to 8 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz)
Computed on June 16, 2013 with Bayeselo based on 135,679 games
Tested by Kirill Kryukov, 2005-2024, http://kirill-kryukov.com/chess/kcec/

Rank                 Engine                  Elo   +    -    AvOp  Games
   1 Movei 00.8.438 (10-10-10)              2722  +21  -21    +7.7   990
   2 Petir 4.39                             2682  +18  -18    -1.8  1233
     Petir 4.999999                         2670  +19  -19    -7.1  1141
     Movei 00.8.403                         2643  +22  -22    +6.1   771
   3 Ktulu 4.2                              2634  +17  -17   -19.2  1344
   4 Twisted Logic 20080404x                2568  +18  -18   -11.7  1226
   5 GNU Chess 5.07.9b 64-bit JA            2448  +16  -16   -25.1  1568
   6 Natwarlal 0.14                         2359  +17  -17    -6.5  1408
     GNU Chess 5.07 64-bit JA               2332  +22  -22    -2.5   839
   7 Genesis 2.0                            2247  +16  -16    -2.5  1493
   8 Ax 0.8                                 2119  +15  -15   +36.8  1967
   9 SnailChess 4.013                       1973  +19  -19   -34.2  1216
  10 Elf 1.3.0                              1820  +18  -18   +94.3  1628
Created in 2005-2012 by Kirill Kryukov
Updated on June 16, 2013