Sudoku

Sudoku online

A break from your routine. A challenge for your mind. Choose a difficulty and fill the grid, without signing up.

Your space to think

Select a cell, then a number. Start with an easy puzzle or challenge yourself.

Free

Rules, first steps and printable puzzles, all in one place.

How the grid works and why numbers cannot repeat.

Learn to spot constraints and find your next move.

Print a puzzle and solve it wherever you like.