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Ivory-billed Woodpecker [1]

a Chess Engine Communication Protocol compliant open source chess program by Evgeniy Korniloff, written in C, first released in 2007 as a branch of OBender 3.1.0. with almost the same board representation but using some bitboards for pawn and evaluation stuff, for instance concerning (open) diagonals and files. Woodpecker further uses centipawn resolution instead of OBender's millipawns [2].

See also

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Chess Engine



  1. Ivory-billed Woodpecker, Campephilus principalis, woodcut or engraving from Elliott Coues (1872). Key to North American Birds, originally from Brehms Tierleben, Wikimedia Commons
  2. chess.h from woodpecker 0.1 fixed gcc src, Index of /chess/engines/Jim Ablett/WOODPECKER by Jim Ablett, hosted by Kirill Kryukov

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