Sudoku Free

Sudoku is a logic based puzzle game about number combinations. The goal is to fill a 9x9 grid with digits such that each column, each row, and each of the nine 3×3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. In each game the game starts with a partially completed grid, which for a well-posed puzzle has a unique solution.