A quieter way to practice

A clear mind starts with one move.

Settle into original Sudoku challenges, learn at your own pace, and return whenever you need a calm moment of focus.

Daily edition09Take your time

Thoughtful hints

Learn the next logical idea—not the whole answer.

Private by default

Your streak and stats stay on this device.

One true solution

Every board is created for clean, logical play.

Streak passport

Your quiet record of progress.

Saved locally in this browser. No sign-up, no pressure.

0Completed

0Best streak

—Current level

—Today’s challenge

The guide library

Better puzzles begin with better patterns.

Learn without losing the pleasure of discovery. Explore concise, practical guides for every stage of your Sudoku practice.

Privacy

Private by design.

This static edition stores only your game progress and streak in this browser. It does not require an account and does not send your puzzle moves to a server.

役立つヒント

遊び方

まず盤面を読み、一つの意図的な手を選び、学習に役立つ時だけ操作を使いましょう。

デイリー数独

動く前に次の役立つパターンを見つけます。落ち着いた手順がゲームを分かりやすくします。

→ 盤面を読む→ 一手を選ぶ→ 結果を見る