Sudoku Strategy Step-by-Step

Improve your Sudoku skills and practicing more advanced strategies like Pointing Pairs, Hidden Twins, Box Reduction, X-Wing or Swordfish. This app comes with unlimited ad-free hints with configurable detail level and can show you all possible strategies for your next move. It allows you to practice advanced strategies individually, e.g. provides you with a puzzles where the next move can be determined by using the X-Wing strategy, helping you to master each of these strategies. It's free, ad-free and offline. It comes with day/night mode and provides expert users with a dedicated button bar for notes.