import { Result } from '@badrap/result';
import { Board } from './board.js';
import { Setup } from './setup.js';
import { Piece } from './types.js';
export declare const INITIAL_BOARD_FEN = "rnbakabnr/9/1c5c1/p1p1p1p1p/9/9/P1P1P1P1P/1C5C1/9/RNBAKABNR";
export declare const INITIAL_EPD: string;
export declare const INITIAL_FEN: string;
export declare const EMPTY_BOARD_FEN = "9/9/9/9/9/9/9/9/9/9";
export declare const EMPTY_EPD: string;
export declare const EMPTY_FEN: string;
export declare enum InvalidFen {
    Fen = "ERR_FEN",
    Board = "ERR_BOARD",
    Turn = "ERR_TURN",
    Halfmoves = "ERR_HALFMOVES",
    Fullmoves = "ERR_FULLMOVES"
}
export declare class FenError extends Error {
}
export declare const parseBoardFen: (boardPart: string) => Result<Board, FenError>;
export declare const parseFen: (fen: string) => Result<Setup, FenError>;
export interface FenOpts {
    epd?: boolean;
}
export declare const parsePiece: (str: string) => Piece | undefined;
export declare const makePiece: (piece: Piece) => string;
export declare const makeBoardFen: (board: Board) => string;
export declare const makeFen: (setup: Setup, opts?: FenOpts) => string;