---
configs:
- config_name: default
  data_files:
  - split: train
    path: train/*.pgn.zst
  - split: test
    path: test/*.pgn.zst
license: mit
tags:
- code
size_categories:
- 100M<n<1B
pretty_name: ChessBot-Dataset
dataset_info:
  features:
  - name: state
    dtype:
      array2_d:
        shape:
        - 8
        - 8
        dtype: int8
  - name: action
    dtype: int16
  - name: result
    dtype: int8
  splits:
  - name: train
    num_bytes: 65545518162
    num_examples: 636364254
  - name: test
    num_bytes: 7298385021
    num_examples: 70858107
  download_size: 7621976329
  dataset_size: 72843903183
---

This repository contains a gigantic curated chess dataset meant for machine learning. Currently the dataset contains approximately **2 Billion positions** in **PGN format**. Huge credits to the following main sources:

- Lumbra's Database (filtered 2600+)
- Lichess Puzzle Database
- Computer Chess: TCEC Database, CCRL, LC0 test80 data


The supporting dataset code and training platform, known as ChessBot-Battleground, is found at: https://github.com/KeithG33/ChessBot-Battleground/

*Note*: The dataset requires `trust_remote_code=True` to parse the pgn data. See the code in `ChessBot-Dataset.py` if you'd like to verify first