Web Sudoku - Billions of Free Sudoku Puzzles to Play Online Today's Variation JigSawDoku Each Sudoku has a unique solution that can be reached logically without guessing Enter digits from 1 to 9 into the blank spaces Every row must contain one of each digit So must every column, as must every 3x3 square Play Offline with Web Sudoku Deluxe Download for Windows or Mac OS X Print a Customized Sudoku