🎯Fill every row, column, and 3×3 box with the digits 1–9. No repeats allowed.

📱Tap a cell, then tap a number below to place it. On desktop, click then type.

✏️Notes mode lets you write multiple candidate numbers in a cell — great for hard puzzles.

💡Stuck? Use a Hint — it reveals one correct number. You have 3 hints per puzzle.

⚠️3 mistakes and the game ends. Think before you place!