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zshogi

v0.0.7

Published

A simple USI shogi engine implemented in Zig

Downloads

6

Readme

Z Shogi

A simple USI shogi engine implemented in Zig

概要

Z Shogi は、Zig で実装されたシンプルな将棋エンジンです。

USI 対応の将棋 GUI ソフトで利用できる実行可能ファイル、 JavaScript から利用できる WebAssembly 版ライブラリ、 動作確認用の Web アプリを提供しています。

将棋プログラミングについては、やねうら王を参考にしました。

評価関数については、やねうら王のNNUE-K-P-256-32-32用評価関数バイナリその2を使っています。

ライブラリの使い方

npm install zshogi
import { Engine } from 'zshogi';

(async () => {
  const engine = await Engine.init();
  for (const request of [
    'usi',
    'setoption name DepthLimit value 5',
    'getoption',
    'isready',
    'usinewgame',
    'd',
    'go',
    'position startpos moves 1g1f',
    'd',
    'go',
    'matsuri',
    'd',
    'moves',
    'checks',
  ]) {
    console.log('> ' + request);
    console.log(engine.run(request));
  }
})();

開発

実行可能ファイルのビルドには、Zig が必要です。

zig build test
zig build --release=fast
./zig-out/bin/zshogi <<EOF
usi
isready
usinewgame
d
moves
go
EOF

合法手生成の性能を計測します。

echo "usi\nisready\nmatsuri\nperft 4" | zig build run --release=fast

WebAssembly 版ライブラリと Web アプリのビルドには、Node.js も必要です。

npm ci
npm run zig:test
npm run zig:wasm
npm run lib
npm run test
npm run build
npm run preview