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Chess engine: Colossus 2021a

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Colossus - UCI chess engine, Author: Martin Bryant

v. 2021a
64-bit compilation
Bitboards
SYZYGY endgame tablebases
Simplified evaluation function
Quiescence search tightened
Transposition table buckets
Counter-move history
Major rewrite of much of remaining code!
v Colossus 2008b +132.7 ELO (+/-13.4 after 2316 games)
v Fruit 2.1 +80.2 ELO (+/-17.7 after 1199 games)





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