Board Colors
Tune a dark-square RGB color and generate a complete chessboard palette with exports.
Chess Nerd
Chess.com API
Formatted reference for the Chess.com published-data API documentation.
Chess.com Titled Players
Browse titled Chess.com accounts — filter by title, rating, country, and status.
Chess.com Tournaments
Event PGNs from Chess.com’s Titled Tuesday, Bullet Brawl, 3-0 Thursday, and Computer Chess Championship, with dates and direct ZIP links.
ECO Codes
Search Encyclopedia of Chess Openings codes and named lines, with a board diagram for every opening.
Engine Game
Play a browser chess game against the bundled Lozza engine.
Engine Releases
A daily feed of the latest releases from open-source chess engines on GitHub, newest first.
FIDE 2500+ Players
Filter FIDE-rated players whose standard, rapid, or blitz rating is at least 2500.
PGN Downloads
Download master games, tournament files, and opening libraries in PGN format.
PGN Info
Analyze an uploaded PGN file to summarize tags, players, openings, and results.
Software Catalog
My PGN tools, plus the essential chess databases, analysis suites, and engine tools players rely on.
Stockfish Commits
Browse Stockfish commits, source snapshots, authors, dates, and messages.
Tournament Archive
Tournament PGNs from the PgnTours archive, generated from CTML sources with crosstables.