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Chess engine: Pedantic 0.6.2

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Pedantic - UCI engines
Rating CEDR=3108

v.0.6.2:
This version corrects defects, includes some refactoring/optimization of existing code and includes retraining of the evaluation. Included in this release are the following changes:

Removed duplicates from training data and increased training data set from 12 million positions to 16 million positions.
Optimized move list and other data structures.
Corrected defect regarding the handling of null moves and history continuations.
Corrected defect that led to incorrect move ordering.
Corrected defect regarding en passant moves not being generated in quiescence search when side was in check.
Playing strength improvements:
AMD Ryzen 9 7940hs ♦ 256mb Hash Table ♦ 3-6 Man Syzygy ♦ Concurrency 14 ♦ openings-10ply-100k.pgn

+34 +/-8 Elo over Pedantic 0.6.0 in self-play at 20+0.2 time controls.

Self-Play Results
Score of Pedantic 0.6.2 vs Pedantic 0.6.0: 1230 - 844 - 1926  [0.548] 4000
...      Pedantic 0.6.2 playing White: 754 - 304 - 942  [0.613] 2000
...      Pedantic 0.6.2 playing Black: 476 - 540 - 984  [0.484] 2000
...      White vs Black: 1294 - 780 - 1926  [0.564] 4000
Elo difference: 33.6 +/- 7.7, LOS: 100.0 %, DrawRatio: 48.1 %

Pedantic - rating CEDR progress
Pl Engine Rating Score Games %
1086 Pedantic 0.6.0 3108.3 55.00 155 35.48
1164 Pedantic 0.5.0 3038.5 107.50 288 37.33
1252 Pedantic 0.4.1 2918.8 87.50 227 38.55
1275 Pedantic 0.3.0 2874.2 53.00 131 40.46

Pedantic 0.6.2 download


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