Killer Sudoku is a puzzle and math game by Logic Wiz it is a free entertaining logic game and brain training app, joining a family of Sudoku and Logic games developed by Logic Wiz. The puzzles are beautifully handcrafted and divided into 6 playing levels from Beginner to Master. The app comes with a great interface and tools for novice and professional solvers, like: Hidden(virtual) cages creator, combination panel, killer calculator, double notation. Smart hints show the next logical step to