Sudoku

Sudoku with everything that matters and nothing that doesn't. A clean board, five real difficulty levels, and a fresh puzzle every day. Every puzzle is generated with exactly one solution and verified before you see it, so a careful solve always gets you home — you will never have to guess. PLAY YOUR WAY • Five difficulties: Easy, Medium, Hard, Expert and Master • Unlimited puzzles, generated fresh — you will never replay the same grid • Fully offline. No account, no sign-up, no waiting on a connection • Your game is saved the moment you leave, mid-puzzle and all TOOLS THAT STAY OUT OF THE WAY • Pencil notes with one tap, or let auto-notes do the bookkeeping • Unlimited undo, all the way back to your first move • Two free hints per puzzle when you are genuinely stuck • Optional mistake limit — switch it off for a pure, untimed solve • Highlighting for the row, column, box and every matching number, each toggleable if you would rather solve unaided A PUZZLE EVERY DAY • One new daily challenge, the same grid for everybody • Build a daily streak — and protect it with streak freezes TRACK EVERY SOLVE • Wins, best times and averages, broken out per difficulty • Ten achievements, from your first win to a flawless Master solve • Optional Google Play Games sign-in keeps achievements with your account