Just Sudoku - Version 1.0 Just Sudoku 1.0 is a free game with lots of different puzzles to solve. The sudoku puzzles are divided into five different levels of difficulty. The aim of sudoku is to enter the digits from 1 to 9 in a grid with 81 cells without repeating them in rows, columns and regions. Just Sudoku 1.0 is absolutely free, has an easy to use point-and-click interface and can easily be installed and uninstalled. A simple game - but unbelievable addictive!