Sudoku

About Sudoku

Fill the grid so every row, column and 3×3 box contains the numbers 1 to 9. Fresh puzzles every time in Easy, Medium and Hard, with notes and mistake highlighting.

#sudoku#numbers#logic#classic

How to play

• Click or tap a cell, then pick a number.
• Keyboard: arrow keys move, 1–9 fill a cell, Backspace clears it.
• Press N to switch notes mode on and off.
• Mistakes are shown in red.