Sudoku - Classic Logic Puzzle

Classic sudoku with a daily challenge, online leaderboards and hints.

Train your brain. Every day.Sudoku in a modern, clean design – no sign-up, with a daily challenge and online leaderboards. Every puzzle has exactly one solution, and difficulty is rated the way a human solves it – so Easy is really easy and Expert is truly rewarding.★ FOUR DIFFICULTY LEVELSEasy, Medium, Hard and Expert – from 45 down to just 24 given digits. New puzzles are generated in a split second, so you will n…