Sudoku 247 - Free Classic Sudoku Puzzles

More than 5000 classic Sudoku puzzles for free. Our free sudoku puzzles has some features that make the game easier for you. Hints, auto-check, and hightlight duplicates. What's more, in our app each classic sudoku puzzles game has on solution. Features: - More than 5000 classic well-formed sudoku puzzles for free - 9x9 grid - 4 perfectly balanced levels of difficulty - Hints - Auto-check - Highlight duplicates - Leaderboards - Unlimited Undos. - Eraser. Get rid of the mistakes Challenge your brain anywhere, anytime!