Open data
CH960 publishes its data openly: anyone can download, check and reuse it. This page lists every dataset with a stable URL and its license.
Nomenclature
All 960 starting positions with family, mirror twin and key squares — the same dataset behind the nomenclature glossary.
Chess960 puzzles
30,000+ tactics puzzles as JSON packs: FEN, solution, themes, rating, engine evaluation and verification data. The pack index lists every file.
All datasets are CC0 (public domain); part of the classic puzzles derive from the Lichess puzzle database (also CC0). CC0 1.0