import { Square, Piece } from './types.js';
import { SquareSet } from './squareSet.js';
import { Board } from './board.js';
import { Position } from './chess.js';
export declare function squareSet(squares: SquareSet): string;
export declare function piece(piece: Piece): string;
export declare function board(board: Board): string;
export declare function square(sq: Square): string;
export declare function dests(dests: Map<Square, SquareSet>): string;
export declare function perft(pos: Position, depth: number, log?: boolean): number;