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%

All engines

Comparing 202 engines!
202 selected engines played 135679 games with each other

Evaluation difference: Most similar pairs (different families only)

#PairEvaluation differenceMoves
counted
1Aldebaran 0.7.0 – Needle 0.53.10.361015
2Elf 1.3.0 – Adamant 1.70.381699
3Fruit 2.3 32-bit – Delfi 5.40.381338
4Movei 00.8.438 (10-10-10) – Petir 4.390.401301
5Pseudo 0.7c – Fritz 6 Light0.401345
6Pseudo 0.7c – Hamsters 0.60.401677
7Fruit 2.3 32-bit – Movei 00.8.438 (10-10-10)0.411320
8WildCat 8 – Booot 4.13.10.411224
9Gullydeckel 2.16pl1 – Faile 1.4.40.411449
10Hamsters 0.6 – Green Light Chess 3.000.411402
11The Crazy Bishop 0052 – Asterisk 0.60.421343
12The Crazy Bishop 0052 – Arion 1.70.421316
13WildCat 7 – List 5.120.421214
14Marvin 1.3.0 – Smash 1.0.30.431503
15Pseudo 0.7c – Movei 00.8.4030.431263
16Slow Chess Blitz WV2.1 – Ruffian 1.0.50.431473
17Ranita 2.4 – Elf 1.3.00.431766
18Alaric 707 – Pseudo 0.7c0.431165
19Fritz 6 Light – Amyan 1.5970.431003
20BugChess2 1.5.2 – Amyan 1.5970.441473
21Pseudo 0.7c – AnMon 5.600.441015
22Alaric 704 – Pseudo 0.7c0.441400
23Movei 00.8.403 – Hamsters 0.50.441225
24The Crazy Bishop 0052 – Averno 0.810.441172
25List 5.12 – SmarThink 0.17a0.441211
26Thinker 4.7a – Fritz 6 Light0.441137
27Fruit 2.3 32-bit – Bright 0.2c0.441272
28Ranita 2.4 – Adamant 1.70.441787
29Pseudo 0.7c – Petir 4.9999990.451110
30Arion 1.7 – Resp 0.19 64-bit JA Nobook0.451269

Alter engine selection



Alter output selection

Rating list
      Protocols
      Logos
      Flags
      Continents
     LOS columns:

Crosstables:
Results
Performances
Score
LOS
Ponder hit
Eval difference
Proportion of draws
Number of games
Number of connecting games
Percentage of connecting games
Expected score
Score with common opponents
Score with all opponents
Performance with common opponents
Performance with all opponents
LOS with common opponents
LOS with all opponents
Ponder hit with common opponents
Ponder hit with all opponents
Eval difference with common opponents
Eval difference with all opponents

Ponder hit: most similar pairs
Ponder hit: most similar pairs (different families only)
Ponder hit: most different pairs
Ponder hit: most different pairs (same families only)
Eval diff: most similar pairs
Eval diff: most similar pairs (different families only)
Eval diff: most different pairs
Eval diff: most different pairs (same families only)

Maximum size of cross-tables (from 2 to 200):
Limit crosstables to engines in Elo range: to

Cross-tables show only best version of each engine
Highlight diagonal of cells wide. (0 to highlight everything)

Reference rating list:
Recalibrate:
  No recalibration (reference and current list are compared as they are)
  Recalibrate reference list to current one using selected engines only
  Recalibrate reference list to current one using all common engines
  Recalibrate current list to reference using selected engines only
  Recalibrate current list to reference using all common engines


Created in 2005-2012 by Kirill Kryukov
Updated on June 16, 2013