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---
license: mit
tags:
- chess
- pgn
- tokenizer
pretty_name: PGN Dataset
size_categories:
- 1M<n<10M
source_datasets:
- https://www.kaggle.com/datasets/milesh1/35-million-chess-games
task_categories:
- token-classification
task_ids:
- parsing
dataset_info:
features:
- name: PGN
dtype: string
splits:
- name: train
num_bytes: 1322248438.672783
num_examples: 3171142
- name: test
num_bytes: 73458431.90975918
num_examples: 176175
- name: validation
num_bytes: 73458431.90975918
num_examples: 176175
download_size: 984493640
dataset_size: 1469165302.4923015
configs:
- config_name: default
data_files:
- split: train
path: data/train-*
- split: test
path: data/test-*
- split: validation
path: data/validation-*
---
# PGN Dataset
**Last Updated**: 2025-01-26
## Description
This is a dataset of chess games in Portable Game Notation (PGN) format. The dataset was created by cleaning and formatting the [milesh1/35-million-chess-games](https://www.kaggle.com/milesh1/35-million-chess-games) dataset from Kaggle.
This version of the pgn-dataset does not include the `[g_start]` and `[g_end]` special tokens that [PGNTokenizer]((https://huggingface.co/InterwebAlchemy/PGNTokenizer) uses to denote the start and end of a game. The [pgn-dataset-including-special-tokens](https://huggingface.co/datasets/InterwebAlchemy/pgn-dataset-including-special-tokens) dataset includes these tokens.
## Notes
This was the training dataset for [`PGNTokenizer`](https://huggingface.co/InterwebAlchemy/PGNTokenizer). For more information about using `PGNTokenizer` visit the [GitHub repository](https://github.com/DVDAGames/pgn-tokenizer).
You can read more about [research from the original dataset](https://chess-research-project.readthedocs.io/en/latest/). |