While in pencil mode, you can enter up to 6 candidates per cell. You can annotate empty cells with the pencil tool, which you can activate by pressing Pen/Pencil button. You can write a list of possible numbers (candidates) for each empty cell to help you solve the grid. When you have entered the layout press the soft key indicator marked 'Solve' to see the correct answer. Select Cheater if you just want to know the answer! Enter the layout of the puzzle you are stuck on into the blank grid.

Enter the layout of the puzzle on the blank grid and play the game normally. Select Create Grid if you want to work on a puzzle you have seen outside this game. There is only one solution to a sudoku grid. The goal is to fill in the grid with digits such that one and only one of each digit 1 through 9 appear in every row, column, and block.

This grid is further subdivided into nine 3x3 blocks. Sudoku is a logic game played on a 9x9 grid using digits 1 through 9. Challenge your mind with virtually limitless Sudoku puzzles! The classic numbers-based logic game that's taken the world by storm, Sudoku offers 4 levels of difficulty, possibility to create own puzzles, cheater mode when game will solve your puzzles and undo/redo function.

Free for apple instal Sudoku+ HD