SwiftShogi is a pure Swift shogi library with game management, bitboard-based board representation, and move generation/validation.

• Game management
• Board representation
• Move generation/validation
• SFEN parsing
• KIF parsing
• Pretty printing

To understand how to develop apps using SwiftShogi, you can refer to the following app.

• SwiftUIShogi - An example shogi app using SwiftUI

Initialize a game with SFEN:

var game = Game(sfen: .default)

To get all valid moves, use the validMoves() method, and to get valid moves for a specified piece, use the validMoves(from:piece:) method:

let moves = game.validMoves()

let pieceMoves = game.validMoves(
    from: .board(.twoG),
    piece: Piece(kind: .pawn(.normal), color: .black)
)

You can perform a move by calling the game's perform(_:) method:

let move = Move(
    source: .board(.twoG),
    destination: .board(.twoF),
    piece: Piece(kind: .pawn(.normal), color: .black)
)
try game.perform(move)

Add the SwiftShogi package to your target dependencies in Package.swift:

import PackageDescription

let package = Package(
    name: "YourProject",
    dependencies: [
        .package(
            url: "https://github.com/hedjirog/SwiftShogi",
            from: "0.1.0"
        ),
    ]
)

Then run the swift build command to build your project.

MIT

Jiro Nagashima (@hedjirog)