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.
Balance of all 960 positions
The starting balance of all 960 positions: engine value, the Morozov Balance Index (0-100), class and the self-play results where they exist. Published under CC BY 4.0 — a different licence from the CC0 datasets above, because the methodology is authored.
CC BY 4.0 Methodology and data: CC BY 4.0 — free to use with attribution to the author.
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