Sudoku online
16 games
Sudoku is a puzzle for a pencil and patience, and here for a mouse or a finger too. The rule is simple: the numbers 1 to 9 each appear once in every row, column and box. The rest is logic.
Every sudoku game in the catalogue is on this page. Alongside classic sudoku there are daily puzzles that change every day, a smaller sudoku for beginners and variants with extra rules: cages, diagonals, letters or flowers instead of numbers.
Questions and answers
Which sudoku is best for beginners?
Mini sudoku with its smaller grid, or classic sudoku on an easier level. Daily sudoku offers four difficulties, so you can grow with the puzzles.
Does the daily sudoku change every day?
Yes. The daily games bring a new puzzle every day, and some keep an archive of earlier days.
What is killer sudoku?
A sudoku with coloured cages whose cells must add up to the number in the corner. The classic sudoku rules still apply.