Lichess Tablebase API

openapi: 3.1.0
info:
  version: 2.0.144
  title: Lichess.org API reference Account Tablebase API
  contact:
    name: Lichess.org API
    url: https://lichess.org/api
    email: contact@lichess.org
  x-logo:
    url: https://lichess1.org/assets/logo/lichess-pad12.svg
  license:
    name: AGPL-3.0-or-later
    url: https://www.gnu.org/licenses/agpl-3.0.txt
  description: '# Introduction

    Welcome to the reference for the Lichess API! Lichess is free/libre,

    open-source chess server powered by volunteers and donations.

    - Get help in the [Lichess Discord channel](https://discord.gg/lichess)

    - API demo app with OAuth2 login and gameplay: [source](https://github.com/lichess-org/api-demo) / [demo](https://lichess-org.github.io/api-demo/)

    - API UI app with OAuth2 login and endpoint forms: [source](https://github.com/lichess-org/api-ui) / [website](https://lichess.org/api/ui)

    - [Contribute to this documentation on Github](https://github.com/lichess-org/api)

    - Check out [Lichess widgets to embed in your website](https://lichess.org/developers)

    - [Download all Lichess rated games](https://database.lichess.org/)

    - [Download all Lichess puzzles with themes, ratings and votes](https://database.lichess.org/#puzzles)

    - [Download all evaluated positions](https://database.lichess.org/#evals)


    ## Endpoint

    All requests go to `https://lichess.org` (unless otherwise specified).


    ## Clients

    - [Python general API](https://github.com/lichess-org/berserk)

    - [MicroPython general API](https://github.com/mkomon/uberserk)

    - [Python general API - async](https://pypi.org/project/async-lichess-sdk)

    - [Python Lichess Bot](https://github.com/lichess-bot-devs/lichess-bot)

    - [Python Board API for Certabo](https://github.com/haklein/certabo-lichess)

    - [Java general API](https://github.com/tors42/chariot)

    - [JavaScript & TypeScript general API](https://github.com/devjiwonchoi/equine)

    - [LichessNET - C# API Wrapper](https://github.com/Rabergsel/LichessNET)

    - [.NET general API](https://github.com/Dblike/LichessSharp)


    ## Rate limiting

    All requests are rate limited using various strategies,

    to ensure the API remains responsive for everyone.

    Only make one request at a time.

    If you receive an HTTP response with a [429 status](https://en.wikipedia.org/wiki/List_of_HTTP_status_codes#429),

    you have exceded one of the rate limits.

    In most cases, waiting one minute before retrying will be sufficient, but some limits may require longer.

    Reduce your request frequency before retrying.


    ## Streaming with ND-JSON

    Some API endpoints stream their responses as [Newline Delimited JSON a.k.a. **nd-json**](https://github.com/ndjson/ndjson-spec), with one JSON object per line.


    Here''s a [JavaScript utility function](https://gist.github.com/ornicar/a097406810939cf7be1df8ea30e94f3e) to help reading NDJSON streamed responses.


    ## Authentication

    ### Which authentication method is right for me?

    [Read about the Lichess API authentication methods and code examples](https://github.com/lichess-org/api/blob/master/example/README.md)


    ### Personal Access Token

    Personal API access tokens allow you to quickly interact with Lichess API without going through an OAuth flow.

    - [Generate a personal access token](https://lichess.org/account/oauth/token)

    - `curl https://lichess.org/api/account -H "Authorization: Bearer {token}"`

    - [NodeJS example](https://github.com/lichess-org/api/tree/master/example/oauth-personal-token)


    ### Token Security

    - Keep your tokens secret. Do not share them in public repositories or public forums.

    - Your tokens can be used to make your account perform arbitrary actions (within the limits of the tokens'' scope). You remain responsible for all activities on your account.

    - Do not hardcode tokens in your application''s code. Use environment variables or a secure storage and ensure they are not shipped/exposed to users. Be especially careful that they are not included in frontend bundles or apps that are shipped to users.

    - If you suspect a token has been compromised, revoke it immediately.


    To see your active tokens or revoke them, see [your Personal API access tokens](https://lichess.org/account/oauth/token).


    ### Authorization Code Flow with PKCE

    The authorization code flow with PKCE allows your users to **login with Lichess**.

    Lichess supports unregistered and public clients (no client authentication, choose any unique client id).

    The only accepted code challenge method is `S256`.

    Access tokens are long-lived (expect one year), unless they are revoked.

    Refresh tokens are not supported.


    See the [documentation for the OAuth endpoints](#tag/OAuth) or

    the [PKCE RFC](https://datatracker.ietf.org/doc/html/rfc7636#section-4) for a precise protocol description.


    - [Demo app](https://lichess-org.github.io/api-demo/)

    - [Minimal client-side example](https://github.com/lichess-org/api/tree/master/example/oauth-app)

    - [Flask/Python example](https://github.com/lakinwecker/lichess-oauth-flask)

    - [Java example](https://github.com/tors42/lichess-oauth-pkce-app)

    - [NodeJS Passport strategy to login with Lichess OAuth2](https://www.npmjs.com/package/passport-lichess)


    #### Real life examples

    - [PyChess](https://github.com/gbtami/pychess-variants) ([source code](https://github.com/gbtami/pychess-variants))

    - [Lichess4545](https://www.lichess4545.com/) ([source code](https://github.com/cyanfish/heltour))

    - [English Chess Federation](https://ecf.octoknight.com/)

    - [Rotherham Online Chess](https://rotherhamonlinechess.azurewebsites.net/tournaments)


    ### Token format

    Access tokens and authorization codes match `^[A-Za-z0-9_]+$`.

    The length of tokens can be increased without notice. Make sure your application can handle at least 512 characters.

    By convention tokens have a recognizable prefix, but do not rely on this.

    '
servers:
- url: https://lichess.org
- url: https://lichess.dev
- url: http://localhost:{port}
  variables:
    port:
      default: '8080'
- url: http://l.org
tags:
- name: Tablebase
  description: 'Lookup positions from the [Lichess tablebase server](https://lichess.org/blog/W3WeMyQAACQAdfAL/7-piece-syzygy-tablebases-are-complete).


    > [!important]

    > The hostname for these endpoints is `tablebase.lichess.org` and not `lichess.org`.

    '
paths:
  /standard:
    get:
      operationId: tablebaseStandard
      summary: Tablebase lookup
      description: '**Endpoint: <https://tablebase.lichess.org>**


        Example: `curl http://tablebase.lichess.org/standard?fen=4k3/6KP/8/8/8/8/7p/8_w_-_-_0_1`

        '
      tags:
      - Tablebase
      servers:
      - url: https://tablebase.lichess.org
      - url: http://localhost:{port}
        variables:
          port:
            default: '9000'
      security: []
      parameters:
      - in: query
        name: fen
        description: X-FEN of the position. Underscores allowed.
        schema:
          type: string
        required: true
      - in: query
        name: dtc
        description: 'When to query the tablebase for `dtc` values. The default is

          `auxiliary`, i.e., only when the position is not covered by one of the

          other tablebases.

          '
        schema:
          type: string
          enum:
          - never
          - auxiliary
          - always
        required: false
      responses:
        '200':
          description: The tablebase information for the position in standard chess.
          headers:
            Access-Control-Allow-Origin:
              schema:
                type: string
                default: '''*'''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TablebaseJson'
              examples:
                default:
                  $ref: '#/components/examples/tablebase-lookupStandard.json'
  /atomic:
    get:
      operationId: tablebaseAtomic
      summary: Tablebase lookup for Atomic chess
      description: '**Endpoint: <https://tablebase.lichess.org>**

        '
      tags:
      - Tablebase
      servers:
      - url: https://tablebase.lichess.org
      - url: http://localhost:{port}
        variables:
          port:
            default: '9000'
      security: []
      parameters:
      - in: query
        name: fen
        description: X-FEN of the position. Underscores allowed.
        schema:
          type: string
        required: true
      responses:
        '200':
          description: The tablebase information for the position in atomic chess.
          headers:
            Access-Control-Allow-Origin:
              schema:
                type: string
                default: '''*'''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TablebaseJson'
              examples:
                default:
                  $ref: '#/components/examples/tablebase-lookupAtomic.json'
  /antichess:
    get:
      operationId: antichessAtomic
      summary: Tablebase lookup for Antichess
      description: '**Endpoint: <https://tablebase.lichess.org>**

        '
      tags:
      - Tablebase
      servers:
      - url: https://tablebase.lichess.org
      - url: http://localhost:{port}
        variables:
          port:
            default: '9000'
      security: []
      parameters:
      - in: query
        name: fen
        description: X-FEN of the position. Underscores allowed.
        schema:
          type: string
        required: true
      responses:
        '200':
          description: The tablebase information for the position in antichess.
          headers:
            Access-Control-Allow-Origin:
              schema:
                type: string
                default: '''*'''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TablebaseJson'
              examples:
                default:
                  $ref: '#/components/examples/tablebase-lookupAntichess.json'
components:
  schemas:
    TablebaseMove:
      type: object
      properties:
        uci:
          type: string
          example: h7h8q
        san:
          type: string
          example: h8=Q+
        category:
          type: string
          enum:
          - loss
          - unknown
          - syzygy-loss
          - maybe-loss
          - blessed-loss
          - draw
          - cursed-win
          - maybe-win
          - syzygy-win
          - win
        dtz:
          type:
          - 'null'
          - integer
        precise_dtz:
          type:
          - 'null'
          - integer
        dtc:
          type:
          - 'null'
          - integer
        dtm:
          type:
          - 'null'
          - integer
        dtw:
          type:
          - 'null'
          - integer
        zeroing:
          type: boolean
        conversion:
          type: boolean
        checkmate:
          type: boolean
        stalemate:
          type: boolean
        variant_win:
          type: boolean
        variant_loss:
          type: boolean
        insufficient_material:
          type: boolean
      required:
      - uci
      - san
      - category
    TablebaseJson:
      type: object
      properties:
        category:
          type: string
          enum:
          - win
          - unknown
          - syzygy-win
          - maybe-win
          - cursed-win
          - draw
          - blessed-loss
          - maybe-loss
          - syzygy-loss
          - loss
          description: '`cursed-win` and `blessed-loss` means the 50-move rule prevents

            the decisive result.


            `syzygy-win` and `syzygy-loss` means exact result is unknown due to

            [DTZ rounding](https://syzygy-tables.info/metrics#dtz), i.e., the

            win or loss could also be prevented by the 50-move rule if

            the user has deviated from the tablebase recommendation since the

            last pawn move or capture.


            `maybe-win` and `maybe-loss` means the result with regard to the

            50-move rule is unknown, because DTZ is unknown and the DTC tablebase

            does not guarantee to reach a zeroing move as soon as possible.

            '
        dtz:
          type:
          - 'null'
          - integer
          description: '[DTZ50'''' with rounding](https://syzygy-tables.info/metrics#dtz) in plies

            (for Standard chess positions with not more than 7 pieces and variant

            positions not more than 6 pieces)

            '
        precise_dtz:
          type:
          - 'null'
          - integer
          description: 'DTZ50'''' in plies, only if guaranteed to not be rounded, or absent if unknown

            '
        dtc:
          type:
          - 'null'
          - integer
          description: "Depth to Conversion: Moves to next capture, promotion,\nor checkmate. Available for:\n* Standard chess positions with 8 pieces, more than one pawn of material\n  value for each side, and at least one pair of opposing pawns,\n  short *op1*, if query parameter `dtc` is `auxiliary` or `always`.\n* Some standard chess positions with up to 7 pieces, if query parameter\n  `dtc` is `always`. Work in progress.\n"
        dtm:
          type:
          - 'null'
          - integer
          description: 'Depth To Mate: Plies to mate (available only for Standard positions

            with not more than 6 pieces)

            '
        dtw:
          type:
          - 'null'
          - integer
          description: 'Depth To Win: Plies to win (available only for Antichess positions

            with not more than 4 pieces)

            '
        checkmate:
          type: boolean
        stalemate:
          type: boolean
        variant_win:
          type: boolean
          description: Only in chess variants
        variant_loss:
          type: boolean
          description: Only in chess variants
        insufficient_material:
          type: boolean
        moves:
          type: array
          description: Information about legal moves, best first
          items:
            $ref: '#/components/schemas/TablebaseMove'
      required:
      - category
      - moves
      example:
        dtz: 1
        precise_dtz: 1
        dtc: null
        dtm: 17
        dtw: null
        checkmate: false
        stalemate: false
        variant_win: false
        variant_loss: false
        insufficient_material: false
        category: win
        moves:
        - uci: h7h8q
          san: h8=Q+
          dtz: -2
          precise_dtz: -2
          dtc: null
          dtm: -16
          dtw: null
          zeroing: true
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          category: loss
  examples:
    tablebase-lookupAtomic.json:
      value:
        checkmate: false
        stalemate: false
        variant_win: false
        variant_loss: false
        insufficient_material: false
        dtz: null
        precise_dtz: null
        dtm: null
        dtw: null
        dtc: null
        category: unknown
        moves:
        - uci: a6b5
          san: Bxb5
          zeroing: true
          conversion: true
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: b4c3
          san: Bxc3
          zeroing: true
          conversion: true
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4c3
          san: Qxc3
          zeroing: true
          conversion: true
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4d3
          san: Qxd3+
          zeroing: true
          conversion: true
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4e3
          san: Qxe3
          zeroing: true
          conversion: true
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: e6e5
          san: e5
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: f7f6
          san: f6
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: g7g6
          san: g6
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: f7f5
          san: f5
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: g7g5
          san: g5
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: h5h4
          san: h4
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4d6
          san: Qd6
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: b4c5
          san: Bc5
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: b4d6
          san: Bd6
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: b4e7
          san: Be7
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: b4f8
          san: Bf8
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: g8h6
          san: Nh6
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: a6b7
          san: Bb7
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: a6c8
          san: Bc8
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: a8b8
          san: Rb8
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: a8c8
          san: Rc8
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: a8d8
          san: Rd8
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: h8h6
          san: Rh6
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: h8h7
          san: Rh7
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: g8e7
          san: Ne7
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: b4a3
          san: Ba3
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: g8f6
          san: Nf6
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4c4
          san: Qc4
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4e4
          san: Qe4
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4f4
          san: Qf4
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4g4
          san: Qg4
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4h4
          san: Qh4
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4c5
          san: Qc5
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4d5
          san: Qd5
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4e5
          san: Qe5
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: b4a5
          san: Ba5
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: d4f6
          san: Qf6
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: e8e7
          san: Ke7
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: e8d8
          san: Kd8
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: e8f8
          san: Kf8
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: e8c8
          san: O-O-O
          zeroing: false
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
    tablebase-lookupAntichess.json:
      value:
        checkmate: false
        stalemate: false
        variant_win: false
        variant_loss: false
        insufficient_material: false
        dtz: null
        precise_dtz: null
        dtm: null
        dtw: null
        dtc: null
        category: unknown
        moves:
        - uci: f7f6
          san: f6
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: h7h6
          san: h6
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: f7f5
          san: f5
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: null
          precise_dtz: null
          dtm: null
          dtw: null
          dtc: null
          category: unknown
        - uci: h7h5
          san: h5
          zeroing: true
          conversion: false
          checkmate: false
          stalemate: false
          variant_win: false
          variant_loss: false
          insufficient_material: false
          dtz: nul

# --- truncated at 32 KB (40 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/lichess/refs/heads/main/openapi/lichess-tablebase-api-openapi.yml