/**
 * Attack detection for chess positions
 *
 * This module provides fast attack detection using bitboards for:
 * - Checking if a square is under attack
 * - Detecting check and checkmate
 * - Generating attack bitboards
 */
import { InternalBoard, Bitboard, SquareIndex, InternalColor } from '../types';
/**
 * Check if a square is attacked by a specific color
 *
 * @param board - Board to check
 * @param square - Square index to check
 * @param attackerColor - Color of attacking pieces
 * @returns true if square is attacked by attackerColor
 */
export declare function isSquareAttacked(board: InternalBoard, square: SquareIndex, attackerColor: InternalColor): boolean;
/**
 * Check if the current player's king is in check
 *
 * @param board - Board to check
 * @returns true if king is in check
 */
export declare function isKingInCheck(board: InternalBoard): boolean;
/**
 * Get all squares attacked by a specific color
 *
 * @param board - Board to check
 * @param attackerColor - Color of attacking pieces
 * @returns Bitboard of all attacked squares
 */
export declare function getAttackedSquares(board: InternalBoard, attackerColor: InternalColor): Bitboard;
/**
 * Get all pieces attacking a specific square
 *
 * @param board - Board to check
 * @param square - Square being attacked
 * @param attackerColor - Color of attacking pieces
 * @returns Bitboard of all pieces attacking the square
 */
export declare function getAttackers(board: InternalBoard, square: SquareIndex, attackerColor: InternalColor): Bitboard;
/**
 * Check if moving a piece would leave the king in check (pinned piece detection)
 *
 * @param board - Board state
 * @param from - Square piece is moving from
 * @param to - Square piece is moving to
 * @returns true if move would leave king in check
 */
export declare function wouldLeaveKingInCheck(board: InternalBoard, from: SquareIndex, to: SquareIndex): boolean;
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