Ninja Sudoku - Logic hint is a full version Android game app developed by m00nlight. It is a brilliant puzzle game that allows you to exercise your brain and improve your logical thinking skills. This app offers an extensive range of puzzles, including normal Sudoku, X Sudoku, Jigsaw Sudoku, and Killer Sudoku. It comprises more than 300,000 puzzles, 5000 X Sudoku, 40,000 Killer Sudoku, and 50,000 Jigsaw puzzles in five difficulty levels from easy to expert. You can play this game without any ads, and it comes with a logical hint and solver built-in.

In addition to these features, Ninja Sudoku has a clean, beautiful, and intuitive user interface. It also has two selection modes that you can switch seamlessly between during gameplay. The app allows you to generate all candidate numbers of the unfilled cells by one-click, highlights related cells and numbers, and has a notes-taking feature with unlimited undo and redo. Moreover, Sudoku techniques are explained in the app, which is a great help for beginners.