Sudoku

A puzzle with exactly one answer, at the size you pick.

Print this one Give me another Plain sheet (opens in a new tab)

One page, made with the defaults below. It re-rolls — 3 versions here, and in the app as many as you press for. In the app you change them and it redraws as you type.

What you can change
Size4 × 4 · 6 × 6 · 9 × 9 · 12 × 12
DifficultyCross things off · Harder · Hardest