README.md

metadata

dataset_info:
  - config_name: '201301'
    features:
      - name: Event
        dtype: string
      - name: Site
        dtype: string
      - name: White
        dtype: string
      - name: Black
        dtype: string
      - name: Result
        dtype: string
      - name: UTCDate
        dtype: date32
      - name: UTCTime
        dtype: time64[us]
      - name: WhiteElo
        dtype: int64
      - name: BlackElo
        dtype: int64
      - name: WhiteRatingDiff
        dtype: float64
      - name: BlackRatingDiff
        dtype: float64
      - name: ECO
        dtype: string
      - name: Opening
        dtype: string
      - name: TimeControl
        dtype: string
      - name: Termination
        dtype: string
      - name: Transcript
        dtype: string
    splits:
      - name: train
        num_bytes: 61861759
        num_examples: 121332
    download_size: 30725337
    dataset_size: 61861759
  - config_name: '201302'
    features:
      - name: Event
        dtype: string
      - name: Site
        dtype: string
      - name: White
        dtype: string
      - name: Black
        dtype: string
      - name: Result
        dtype: string
      - name: UTCDate
        dtype: date32
      - name: UTCTime
        dtype: time64[us]
      - name: WhiteElo
        dtype: int64
      - name: BlackElo
        dtype: int64
      - name: WhiteRatingDiff
        dtype: float64
      - name: BlackRatingDiff
        dtype: float64
      - name: ECO
        dtype: string
      - name: Opening
        dtype: string
      - name: TimeControl
        dtype: string
      - name: Termination
        dtype: string
      - name: Transcript
        dtype: string
    splits:
      - name: train
        num_bytes: 63219833
        num_examples: 123961
    download_size: 31415051
    dataset_size: 63219833
  - config_name: '201303'
    features:
      - name: Event
        dtype: string
      - name: Site
        dtype: string
      - name: White
        dtype: string
      - name: Black
        dtype: string
      - name: Result
        dtype: string
      - name: UTCDate
        dtype: date32
      - name: UTCTime
        dtype: time64[us]
      - name: WhiteElo
        dtype: int64
      - name: BlackElo
        dtype: int64
      - name: WhiteRatingDiff
        dtype: float64
      - name: BlackRatingDiff
        dtype: float64
      - name: ECO
        dtype: string
      - name: Opening
        dtype: string
      - name: TimeControl
        dtype: string
      - name: Termination
        dtype: string
      - name: Transcript
        dtype: string
    splits:
      - name: train
        num_bytes: 81816980
        num_examples: 158635
    download_size: 40807271
    dataset_size: 81816980
configs:
  - config_name: '201301'
    data_files:
      - split: train
        path: data/201301/train-*
  - config_name: '201302'
    data_files:
      - split: train
        path: data/201302/train-*
  - config_name: '201303'
    data_files:
      - split: train
        path: data/201303/train-*

Dataset Card for Lichess.org UCI Dataset

Description

The Lichess.org database has been converted to UCI format and uploaded here. This dataset groups games according to the year and month (yyyymm format) the games took place.

Dataset Structure

Each record in the dataset has the following structure:

{
  "Site": "abcd1234",
  "Event": "Rated Blitz game",
  "White": "player1",
  "Black": "player2",
  "Result": "1-0",
  "UTCDate": "2023-05-21",
  "UTCTime": "13:45:00",
  "WhiteElo": 1500,
  "BlackElo": 1400,
  "WhiteRatingDiff": 10,
  "BlackRatingDiff": -10,
  "ECO": "C50",
  "Opening": "Italian Game",
  "TimeControl": "300+0",
  "Termination": "Normal",
  "Transcript": "e2e4 e7e5 g1f3 b8c6 ... d7d8Q"
}

Field descriptions

• Site: string, unique identifier for the game. Replays can be viewed by navigating to https://lichess.org/<site>
• Event: string, type of event.
• White: string, white player.
• Black: string, black player.
• Result: string, game result.
• UTCDate: date32, date of the game.
• UTCTime: time64[us], time of the game.
• WhiteElo: int64, ELO rating of the white player.
• BlackElo: int64, ELO rating of the black player.
• WhiteRatingDiff: float64, rating change for the white player.
• BlackRatingDiff: float64, rating change for the black player.
• ECO: string, ECO code of the opening.
• Opening: string, name of the opening.
• TimeControl: string, time control format.
• Termination: string, reason for game termination.
• Transcript: string, sequence of moves in UCI format. Note: Promotions are capitalized.

Human versus Bot Players

The source data comes from games played on Lichess.org, an online platform where users from around the world play chess. This database does not distinguish between human-and bot-played games. However, it's reasonable to assume games played before April 2018 were overwhelmingly played by human players since Lichess.org released its bot api on April 1st, 2018.

Citation Information

If you use this dataset, please cite it as follows:

@misc{lichess_uci,
  author = {Davis, Austin},
  title = {Lichess.org Open Database in UCI format},
  year = {2024},
  howpublished = {\url{https://huggingface.co/datasets/austindavis/lichess-uci}},
}