SudokuComplete the 9×9 grid with the numbers 1 to 9.Step by step

Tap an empty cell, then the number.

Every row has the numbers 1 to 9, no repeats.

Every column too.

And every 3×3 block (the area with a thicker border) too.

Tips

"Notes" lets you write small draft numbers in a cell.

A repeated number turns red.

On a computer: type 1 to 9, N turns notes on, Shift + number writes a note directly, arrows move, Backspace erases.

Computer or tablet only for now.