/**
 * AI and search-related types for js-chess-engine
 */
import { InternalMove, ScoredMove as InternalScoredMove } from './move.types';
import { BoardConfig, HistoryEntry } from './board.types';
/**
 * AI difficulty level (1-6)
 */
export type AILevel = 1 | 2 | 3 | 4 | 5;
/**
 * Search depth
 */
export type Depth = number;
/**
 * Evaluation score (centipawns)
 * Positive = good for white, negative = good for black
 */
export type Score = number;
/**
 * User-facing scored move (API format).
 */
export interface ScoredHistoryMove {
    move: HistoryEntry;
    score: Score;
}
/**
 * Result of `ai()`.
 *
 * When `analysis: true` is passed, extra fields are included directly on the result.
 */
export interface AIResult {
    move: HistoryEntry;
    board: BoardConfig;
    analysis?: ScoredHistoryMove[];
    depth?: Depth;
    nodesSearched?: number;
    bestScore?: Score;
}
/**
 * Search result
 */
export interface SearchResult {
    move: InternalMove;
    score: Score;
    depth: Depth;
    nodesSearched: number;
    scoredMoves?: InternalScoredMove[];
}
/**
 * Alpha-beta search bounds
 */
export interface SearchBounds {
    alpha: Score;
    beta: Score;
}
/**
 * Transposition table entry type
 */
export declare enum TTEntryType {
    EXACT = 0,// Exact score
    LOWERBOUND = 1,// Beta cutoff (fail-high)
    UPPERBOUND = 2
}
/**
 * Transposition table entry
 */
export interface TTEntry {
    zobristHash: bigint;
    depth: Depth;
    score: Score;
    type: TTEntryType;
    bestMove: InternalMove | null;
    age: number;
}
/**
 * Killer move table (indexed by ply)
 */
export type KillerMoves = Array<[InternalMove | null, InternalMove | null]>;
/**
 * History heuristic table
 * [from][to] -> score
 */
export type HistoryTable = number[][];
/**
 * MVV-LVA (Most Valuable Victim - Least Valuable Aggressor) score
 */
export interface MVVLVAScore {
    victim: number;
    aggressor: number;
}
/**
 * Position evaluation components
 */
export interface EvaluationComponents {
    material: Score;
    pieceSquareTables: Score;
    pawnStructure: Score;
    kingSafety: Score;
    mobility: Score;
    rookBonus: Score;
}
/**
 * Pawn structure analysis
 */
export interface PawnStructure {
    doubledPawns: number;
    isolatedPawns: number;
    passedPawns: number;
    pawnChains: number;
}
/**
 * King safety analysis
 */
export interface KingSafety {
    pawnShield: number;
    attackingPieces: number;
    attackZoneControl: number;
}
//# sourceMappingURL=ai.types.d.ts.map