Lichess Puzzle DB
Update (Dec 22, 2020): Lichess has published a new set of puzzles in the public domain here: https://database.lichess.org/#puzzles
This is a snapshot of all 64,214 puzzles used by the Lichess tactics trainer as of December 2020.
Each file in the puzzles/
directory is a pretty-printed JSON data file containing puzzle data in the following format:
{
"id": 61053,
"rating": 1745,
"attempts": 1819451,
"fen": "r2q1rk1/p1p1b1pp/2b2P2/2p5/3pnB2/5N2/PPPNQPPP/R4RK1 b - - 0 15",
"color": "white",
"initialPly": 30,
"gameId": "XpecPKXm",
"lines": {
"e2e6": {
"g8h8": {
"e6c6": {
"a8b8": "win"
}
}
}
},
"vote": 30843,
"enabled": true
}
Notes
- Number of puzzles: 64214
- Lichess puzzle ID range: 61053 to 125272
- These puzzles were deleted by Lichess
- All puzzles from 1 to 61052
- Puzzles 61879, 64203, 66836, 67722, 79780, 108779