Sudoku FREE

Sudoku. Fill in numbers 1-9 so each row, column and box contains no repeats. Either you love these or you do not - not much middle ground.

Multiple difficulty levels. Easy ones take a few minutes, hard ones can eat an hour if you let them. We got stuck on a medium one for longer than we care to admit.

The grid is readable on mobile but bigger screens make it easier to see everything at once.