Sudoku 9×9 Medium — Set 71By skyseed_admin / April 9, 2026 medium 9×9 Set 71 Complete the sudoku grid (6x6): each row, column, and box must contain each digit exactly once. Grid: [4 2 1 _ | 1 _ 2 _ | _ 4 _ 1 | 3 _ _ _] Check Answers Reveal Solution Reset