Puzzle
Sudoku
The classic number-placement puzzle. Fill the 9×9 grid so every row, every column, and every 3×3 box contains the digits 1 to 9 exactly once. Four difficulties and one-tap resume.
📖 How to Play
1
Choose a Difficulty
From the main menu, tap the Sudoku card and pick a level — Easy, Medium, Hard or Expert. If you have a puzzle in progress, tap Continue to jump back in.
2
Fill the Grid
Tap an empty cell, then tap a number on the pad to place it. Each row, column, and 3×3 box must hold every digit from 1 to 9 with no repeats.
3
Use Notes
Stuck on a cell? Turn on notes to pencil in the candidate numbers for a square, then narrow them down as you solve the rest of the board.
4
Complete the Puzzle
Solve the whole grid correctly to finish. Your progress is saved automatically, so you can always pick up exactly where you left off.
Tip 🔢: Start with the rows, columns, or boxes that already have the most numbers filled in — they give you the fewest options and the quickest wins.