Sudoku is a mesmerizing online game that won't waste your time. It aims to develop memory and train the brain and thinking. The goal of the players is to fill in the empty cells with numbers from one to nine. In all rows, columns, or 3 x 3 blocks, each number must occur only once. Having completed the task, the player is awarded points and he moves on to solve the next Sudoku in this logical free puzzle game!