Sudoku
Fill the grid so every row, column, and 3×3 box has the numbers 1 to 9.
Easy
A gentle daily warm-up.
Medium
A little more to untangle.
Hard
A tougher test for keen puzzlers.
Fill the grid so every row, column, and 3×3 box has the numbers 1 to 9.
A gentle daily warm-up.
A little more to untangle.
A tougher test for keen puzzlers.