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 31 engines!
31 selected engines played 2832 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 Fruit 2.3 32-bit                       2888  +23  -23  -147.8   823
   2 Naum 2.0 64-bit                        2793  +21  -21   -58.9   961
     Naum 2.0 32-bit                        2777  +26  -26   -51.4   551
   3 Zappa 1.1 64-bit                       2717  +19  -19    +3.9  1190
   4 Slow Chess Blitz WV2.1                 2716  +19  -19    +3.2  1136
   5 Crafty 21.5 64-bit PS                  2652  +17  -17    +6.2  1390
   6 Thinker 4.7a                           2634  +17  -17   -20.5  1366
   7 Bruja 1.9 64-bit JA No-int-book        2584  +18  -18    -5.2  1181
   8 Arasan 10.0 64-bit                     2564  +17  -17    -4.0  1293
   9 King of Kings 2.56                     2536  +18  -18    -2.5  1214
  10 RomiChess P3k 64-bit                   2502  +18  -18    +9.9  1088
  11 Diablo 0.5.1 JA                        2482  +16  -16    -0.7  1408
  12 Djinn 0.925x                           2479  +16  -16   -20.8  1549
  13 Betsy 6.51 Nobook                      2450  +15  -15   -30.5  1651
  14 GNU Chess 5.07.9b 64-bit JA            2448  +16  -16   -25.1  1568
  15 Amateur 2.82                           2446  +15  -15   -40.0  1783
  16 Sage 3.53                              2424  +19  -19    +2.2  1088
  17 Horizon 4.4                            2419  +18  -18    +2.5  1152
  18 EXchess 5.01 beta 64-bit JA            2355  +14  -14    -0.7  1883
     GNU Chess 5.07 64-bit JA               2332  +22  -22    -2.5   839
  19 Dorky 3.48                             2308  +16  -16   -17.2  1671
  20 Latista (Sinobyl) 1.5                  2289  +16  -16    -0.9  1595
  21 Parrot 070722                          2161  +17  -17    -5.2  1344
  22 Gerbil 02 64-bit JA                    2118  +18  -18    +3.6  1280
  23 Etude 0.1.2                            2063  +19  -19    +3.0  1184
  24 SSEChessII 2.05 DC                     2049  +17  -17   -21.6  1632
  25 Faile 1.4.4                            2042  +15  -15   +26.8  1968
  26 Simontacchi 1.81                       1915  +20  -20   -14.8  1216
  27 Storm 0.6                              1673  +25  -25   +88.9   800
  28 Zotron 4.4.6                           1669  +24  -24   +93.0   800
  29 Exacto 0.d                             1607  +26  -26  +130.4   672
Created in 2005-2012 by Kirill Kryukov
Updated on June 16, 2013