mwg API
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    Interface TablebaseEnding

    interface TablebaseEnding {
        dtm: string;
        id: string;
        positions: number;
        version: 1;
        wdl: string;
        white: TablebaseExtra[];
    }
    Index
    dtm: string

    run-length plus base64 distance-to-mate, little-endian pairs per position

    id: string

    canonical id: K + extras strongest-first + K, e.g. KQK, KQBK

    positions: number

    indexed positions: 64^pieces times the side to move

    version: 1
    wdl: string

    run-length plus base64 WDL bytes, one per position