shogiarena 0.4.0

Asynchronous tournament and SPSA tuning platform for USI shogi engines

ShogiArena

[!NOTE] This project is still moving quickly. Public APIs are being clarified, and breaking changes are accepted during development. See CHANGELOG for release notes.

Documentation: https://nyoki-mtl.github.io/ShogiArena/index.html Japanese README: README_ja.md

ShogiArena is a platform for running shogi engine tournaments, statistical testing, dashboard monitoring, and engine automation.

Public Python API

Supported import paths:

• shogiarena.engine
• shogiarena.tournament
• shogiarena.cli
• shogiarena.composition

Implementation modules live under shogiarena._core. They are importable but internal, and not covered by compatibility guarantees.

Installation

pip install shogiarena

Optional environment initialization:

shogiarena config init

This is useful when you need artifact-based engine resolution, placeholder variables such as {output_dir} / {engine_dir}, or shared cache settings.

Quick Examples

Use a USI engine from Python

import asyncio

from shogiarena.engine import UsiThinkRequest, create_engine


async def main() -> None:
    async with await create_engine("engine.yaml") as engine:
        result = await engine.think(
            sfen="startpos",
            request=UsiThinkRequest(movetime=5_000),
        )
        print(result.bestmove)


asyncio.run(main())

Run a tournament from Python

import asyncio

from shogiarena.tournament import run_tournament


async def main() -> None:
    await run_tournament(
        "tournament.yaml",
        run_dir="runs/example",
    )


asyncio.run(main())

Advanced runner construction

import asyncio

from shogiarena.tournament import (
    build_tournament_runner,
    create_run_storage,
    load_tournament_config,
)


async def main() -> None:
    config = load_tournament_config("tournament.yaml")
    storage = create_run_storage("runs/example")
    runner = build_tournament_runner(config, storage=storage)
    await runner.run()


asyncio.run(main())

CLI Examples

shogiarena run tournament configs/run/tournament/example.yaml
shogiarena run sprt examples/configs/run/sprt/example.yaml
shogiarena run spsa examples/configs/run/spsa/example.yaml

tournament and sprt are available both from CLI and the public Python API. spsa is currently CLI-first; its Python surface is not yet formalized.

Documentation

• Getting Started
• User Guide
• API Reference
• Technical Notes
• Contributing

License

MIT. See LICENSE.