Build professional Polyglot opening books from real PGNs. No heuristics. No magic filtering.

CAISSA Polyglot Book Creator

Generate Polyglot opening books (.bin) from PGN.

Download v0.2.0

Download CAISSA Book Creator v0.2.0 (Portable ZIP)

Online PGN → BIN Service

Upload PGN, apply options, and generate a Polyglot .bin file directly in your browser session.

Build Log

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