Djape Does Sudoku

This is an interactive Kindle version of a paperback book under the same name.

Having published numerous books and apps of various kinds of Sudoku variants and other puzzles, it was about time Djape published an app of classic Sudokus.

However, this collection is for advanced solvers. There are no trivial and boring puzzles here. While all 300 of them will surely make you think, the final 60 will make you sweat! Those 60 puzzles require you to use either the X-Wing or Swordfish solving techniques, which are not trivial. Both techniques are explained in the introduction section.

Features of this application include: pencilmarks, automatic pencilmarks, hints, multiple level undo/redo and instructions on how to solve puzzles.

So, if you are ready for a real Sudoku challenge and to learn new solving techniques, this is the game for you!