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Chess engine: Halogen 5.0

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Halogen - UCI chess engine
Author: Kieren Pearson

A c++ chess engine that implements Null-move pruning, Late move reductions, Quiessence search and a transposition table that uses Zobrist Hashing.

 New Features:
Major changes:
Implemented the 'Texel tuning method' for optimising evaluation parameters.
Try the hash move before generating other moves #20 (+40 elo)
Tuned evaluation parameters #27 #28 (+100 elo)
Minor changes:
Increased thread safety to avoid crashes #18
Transposition entries now take 16 bytes (half original size) #19
Add a bonus for a rook on a open or semi open file #22
Added a tempo bonus #23
Pawn blockade detection for completely closed king-pawn positions #24
Changed history tables to have one for each player #25
Only update history if the move is quiet #26
Added and tuned evaluation for casteling rights #29
Fixed bug where engine could not be loaded into Fritz (thanks Gabor Szots)

 Halogen 5.0 download
All files (games, tables and engines) - download from page

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