| --- |
| license: cc0-1.0 |
| pretty_name: Rukh puzzle splits |
| language: |
| - en |
| task_categories: |
| - text-generation |
| - question-answering |
| size_categories: |
| - 100K<n<1M |
| source_datasets: |
| - original |
| tags: |
| - chess |
| - rukh |
| - puzzles |
| --- |
| |
| # chorcat/rukh-puzzles-split |
|
|
| Lichess puzzles with rating deviation <= 100 and at least 100 plays, banded by difficulty (1000-1500, 1500-2000, 2000+) and split into test and train by a seeded hash of the puzzle id, each with the moves of the game it came from, for tactical evaluation and fine-tuning. |
|
|
| Part of [Rukh](https://github.com/borja-glez/rukh), a chess language model built from scratch |
| as a course on generative and agentic AI. Every derived dataset ships with the exact filters and |
| counts of its `manifest.json`, so it can be regenerated with `rukh data puzzles`. |
|
|
| ## Files |
|
|
| | File | Bytes | SHA-256 | |
| |---|---:|---| |
| | `puzzles.parquet` | 22333530 | `48d753215820498e41f4ef8e25ae5094582f284651bf1889da0882a89ebdba13` | |
|
|
| Rows: **312000**. |
|
|
| ## Columns |
|
|
| | Column | Description | |
| |---|---| |
| | `puzzle_id` | Lichess puzzle id | |
| | `fen` | position before the opponent's last move (Lichess convention) | |
| | `moves` | UCI moves: the opponent's move first, then the solution | |
| | `rating` | puzzle rating | |
| | `themes` | Lichess theme tags | |
| | `band` | `1000-1500`, `1500-2000` or `2000+` | |
| | `split` | `test` or `train` | |
| | `prefix_uci` | the real game's UCI moves up to `fen`, space-separated | |
| | `prefix_plies` | number of moves in `prefix_uci` | |
| | `white_elo` | rating of White in that game | |
| | `black_elo` | rating of Black in that game | |
|
|
| ## Provenance and filters |
|
|
| Source: `Lichess/chess-puzzles-with-games` on the Hugging Face Hub. |
|
|
| ```json |
| { |
| "max_rating_deviation": 100, |
| "min_plays": 100, |
| "bands": [ |
| "1000-1500", |
| "1500-2000", |
| "2000+" |
| ], |
| "n_test": 2000, |
| "n_train": 50000, |
| "seed": 42, |
| "split_by": "blake2b(seed:PuzzleId)", |
| "with_games": true, |
| "prefix": { |
| "source": "movetext replayed to the puzzle FEN", |
| "dropped": {}, |
| "dropped_fraction": 0.0 |
| } |
| } |
| ``` |
|
|
| Counts: |
|
|
| ```json |
| { |
| "1000-1500/test": 2000, |
| "1000-1500/train": 50000, |
| "1500-2000/test": 2000, |
| "1500-2000/train": 50000, |
| "2000+/test": 2000, |
| "2000+/train": 50000, |
| "selected": 156000, |
| "dropped_no_prefix": 0 |
| } |
| ``` |
|
|
| Generated on 2026-09-19 with `rukh` 0.0.1. |
|
|
| ## In the course |
|
|
| - Built in [M1 · Del PGN al tensor: los labs](https://lab.rukh.borjaglez.com/curso/m1/02-labs-del-pipeline/), the lesson that runs every command behind this repository. |
| - Measured in the [single results table](https://lab.rukh.borjaglez.com/proyecto/): every stage of the course, the same suite, the same day. |
| - Bring it to the paths the configs read: `uv run rukh pull rukh-puzzles-split`. |
|
|
|
|
|
|
| ## License |
|
|
| CC0 1.0. The games, puzzles and evaluations come from the Lichess open database (https://database.lichess.org, https://huggingface.co/Lichess), published under CC0; the derived files keep that license. Please credit Lichess when you use them. |
|
|
