Question 1

How do I play Sudoku?

Accepted Answer

Fill every row, column, and 3×3 box with numbers 1-9 without repeats. Click a cell and press a number key.

Question 2

What is Notes mode?

Accepted Answer

Press N to toggle notes mode. In notes mode, numbers you enter appear as small pencil marks to help you plan.

Question 3

How is difficulty determined?

Accepted Answer

Easy puzzles have ~36 blanks, medium ~45, hard ~52, expert ~58. More blanks = harder.

Question 4

How do I play Super Sudoku Online - Free Puzzle Game online free?

Accepted Answer

Click Start and follow the on-screen steps. Use mouse, touch, or keyboard controls. No download needed.

Question 5

Can I play Super Sudoku Online - Free Puzzle Game without downloading?

Accepted Answer

Yes. This Super Sudoku Online - Free Puzzle Game runs in your browser with no install. Free on mobile and desktop.

Question 6

How do I use this Super Sudoku Online - Free Puzzle Game online free?

Accepted Answer

Open the game above and press Start. Free with no login, works on mobile and desktop.