Portable Sudoku for Windows 1.6.9 PC games | Windows |SourceForge | 5.23 MB Sudoku for Windows is one of the most amazing, challenging, intriguing, and entertaining puzzles to sweep the world in decades. It has a unique solution that can be reached logically without guess. Fill digits from 1 to 9 into the blank spaces. Every row must contain one of each digit. So must every column, as must every 3×3 square.