Catalogue tag

#fen

Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.

5 records

Tagged “fen”Ranked by health index

PyPI

78Goodhealth index

niklasf/python-chess

A chess library for Python, with move generation and validation, PGN parsing and writing, Polyglot opening book reading, Gaviota tablebase probing, Syzygy tablebase probing, and UCI/XBoard engine communication

Python★ 2,860↓ 2.5M/moAug 13, 2026

GPL-3.0Aug 13, 2026 · metrics 2.10.0

PyPI

73Goodhealth index

miskibin/py-draughts

Fastest Python draughts/checkers library — bitboards, 8 variants, alpha-beta engine, web UI. ~200x faster than pydraughts.

Python★ 16↓ 673/moAug 17, 2026

GPL-3.0Aug 17, 2026 · metrics 2.10.0

npm

71Goodhealth index

A JavaScript/TypeScript library implementing the chess game rules and providing tools to read/write the standard chess file formats.

TypeScript · JavaScript★ 33↓ 2,138/moJul 23, 2026

LGPL-3.0Jul 23, 2026 · metrics 2.10.0

npm

69Goodhealth index

niklasf/chessops

Chess and chess variant rules and operations in TypeScript

TypeScript★ 171↓ 75.8K/moJul 19, 2026

GPL-3.0Jul 19, 2026 · metrics 2.10.0

npm

63Moderatehealth index

lichess-org/chessops

Chess and chess variant rules and operations in TypeScript

TypeScript★ 171Jul 15, 2026

GPL-3.0Jul 15, 2026 · metrics 2.10.0