Solves any valid sudoku puzzle. Helps you to improve your solving skills and practice solving strategies. Offers thousands of free graded puzzles.
New sudoku puzzles free every day at five difficulty levels with solver, hints and step-by-step solutions. Print sudoku puzzles at several grid sizes.
Never-ending variety of free online Sudoku puzzles - you can play your daily Sudoku here, get a printable Sudoku or enjoy all the helpful features.