Archived App (Last seen on 23 May 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Classic sudoku puzzle
* endless (computer generated) puzzles in 4 difficulty levels
* many setting options for learning how to play perfectly
* (optionally) calculated digits (pencil marks)
* show errors/hints
* free mode: design your own puzzles or play a newspaper sudoku
* highscore
optionally:
* highlight errors
* highlight all occurrences of a selected number
* highlight finished numbers
digits (pencil marks):
* constantly compute all pencil marks as the sudoku changes
* calculate pencil marks at start
* show marks as numbers or as dots
Have fun playing!
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What's New in Classic Sudoku Redux
1.5
July 2, 2025
Bugfixes, new config for digits
