Datasets:

Lichess
/

antichess-chess-games

license: cc0-1.0
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/year=2025/month=08/train-*
tags:
  - chess
  - antichess
  - lichess
  - game
  - games
  - tabular
pretty_name: Rated Antichess Games
size_categories:
  - 10M<n<100M
dataset_info:
  features:
    - name: Event
      dtype: string
    - name: Site
      dtype: string
    - name: White
      dtype: string
    - name: Black
      dtype: string
    - name: Result
      dtype: string
    - name: WhiteTitle
      dtype: string
    - name: BlackTitle
      dtype: string
    - name: WhiteElo
      dtype: int16
    - name: BlackElo
      dtype: int16
    - name: WhiteRatingDiff
      dtype: int16
    - name: BlackRatingDiff
      dtype: int16
    - name: UTCDate
      dtype: date32
    - name: UTCTime
      dtype: time32[s]
    - name: ECO
      dtype: string
    - name: Opening
      dtype: string
    - name: Termination
      dtype: string
    - name: TimeControl
      dtype: string
    - name: movetext
      dtype: string
  splits:
    - name: train
      num_bytes: 557952411
      num_examples: 351230
  download_size: 178676308
  dataset_size: 557952411

This dataset is still a work in progress and some breaking changes might occur.