File size: 958 Bytes
817ea6a |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 |
---
license: cc0-1.0
tags:
- lichess
- chess
- puzzles
- datasets
---
# Lichess Puzzle Database …
# Lichess Puzzle Database ▸ Mate‑in‑1/2/3 Subset
A 10k slice of the official Lichess puzzle corpus.
**Note: The board is updated to the position that arises after the opponent blunders.**
## Source
* Original dataset: [https://huggingface.co/datasets/Lichess/chess-puzzles](https://huggingface.co/datasets/Lichess/chess-puzzles)
## What’s Inside
| Category | Count |
| --------- | -------- |
| Mate‑in‑1 | 3333 |
| Mate‑in‑2 | 3333 |
| Mate‑in‑3 | 3333 |
| **Total** | **9999** |
## Format Improvements
| Field | Old | New |
| -------- | -------- | ------------------------------- |
| Position | FEN | **FEN** & **PGN** |
| Solution | UCI move | **UCI move** & **SAN move** |
## License
Data and code released under **CC0‑1.0** — no rights reserved. |