Lichess Puzzles By Eco Zip – Full & Proven

: Each puzzle entry includes the starting FEN, the move sequence to solve it, the puzzle's rating, and "Themes" tags (e.g., fork, pin, mate in 2).

While the official Lichess database provides puzzles in a single large CSV or BZ2 file, the "By ECO" organization was a specific project shared by community members: download all puzzles - Lichess.org Lichess Puzzles By Eco zip

: Puzzles are grouped into 5 main folders (A through E) and subdivided into 495 specific PGN files by ECO code. : Each puzzle entry includes the starting FEN,

: These are designed for offline training or for use in external chess software (like Scid vs. PC) where users want to drill tactics that arise from their own opening repertoire. Where to Find the Data the move sequence to solve it