Open-source tools for building and improving computer chess opening books, including Source2Metal and SyzygyCheck.
chess pgn ctg fritz chess-database syzygy egtb tablebase chess-opening-book computer-chess cbh chessbase fritz-chess ctg2pgn cbh2pgn 2cbh 2cbh2pgn syzygy-check rtbw rtbz
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Updated
Sep 9, 2026 - Go