How to play

Fill every row, column, and 3×3 box with 1–9.

Tap or click a cell, then a number. Notes, Hint, and Check sit under the grid. 1–9 and arrows work on a keyboard.

Faster solves with fewer hints score higher.

🌟 golden cells give +100 and a free 💡 hint. Finishing a row, column or box gives a bonus, and a streak of right numbers doubles your points. You have 3 hearts — a wrong number costs one. 12 levels, each harder than the last.