About this game
Play Outside Sudoku free online. Standard Sudoku plus outside clues that tell you which digits appear in the border cells of each row and column. 27 unique-solution puzzles from Beginner to Master.
Play Outside Sudoku free online. Standard Sudoku plus outside clues that tell you which digits appear in the border cells of each row and column. 27 unique-solution puzzles from Beginner to Master.