Sudoku (Oh No! Another One!) Downloads & RevenueSudoku (Oh No! Another One!) · App Store

Sudoku is the classic logic puzzle: fill the 9x9 grid so that every row, column and 3x3 box contains the numbers 1 to 9 exactly once. No math required, just reasoning.

Every puzzle has exactly one solution, and the given numbers are placed symmetrically, like the sudoku in newspapers and puzzle books.

- 4 difficulty levels: easy, medium, hard and extreme
- A new daily sudoku every day
- Notes, cleared automatically when you place a number
- Optional hints: candidates appear in a cell when 3 or fewer remain
- Reveal a number when you are stuck
- Highlighting of conflicts and of the row, column and box of the selected cell
- Colour sudoku, with colours in place of numbers
- 5 themes and an optional timer
- Undo, Apple Pencil input on iPad and external keyboard support
- Print your sudoku or send it as a PDF by email
- Play offline, no internet connection needed

Fully accessible with VoiceOver: every cell, number and note is read aloud.