Are you stuck on a difficult sudoku puzzle? Need an explanation to help you out, but don't just want all of the numbers given to you?

Sudoku Solver: Step by Step Explanations will solve sudoku puzzles and show you each logical step in the solving process, along with an explanation for how the step was solved and the technique that was used to solve it.

A special list of techniques is also available for beginner sudoku solvers that will explain what each technique is and how it works. The techniques available range from simple, beginner level logic, to advanced and difficult to spot patterns including:

-Hidden/Naked singles
-Hidden/Naked subsets
-Box, Row, Column interaction
-X-Wing, swordfish, jellyfish, squirmbag

BTW, this app was written by one guy who is 16 and loves sudoku

Best part? It's FREE!