Sudoku – Classic Number Puzzle

A classic sudoku with the soul of a paper puzzle. The givens are printed in crisp type; your answers go in with a handwritten pencil touch. It feels less like a screen and more like the puzzle page of a morning paper. ◆ WHY YOU'LL LIKE IT - Quiet, focused solving — no flashy effects - Build a daily brain-training habit, one puzzle a day - Pure sudoku: no hints, no hand-holding ◆ FEATURES - Four difficulties: Easy, Medium, Hard, Expert - Every puzzle has exactly one solution — solvable by logic alone - Daily Puzzle: the same board for everyone, playable only that day - Attendance-style streaks with a calendar record - Pencil notes, undo and redo - Same-number and row/column/box highlighting - Duplicates turn red — but the answer is never given away - Best and average times per difficulty, plus separate no-notes records - Game Center leaderboards: best times and a daily ranking - Fully playable offline Open today's puzzle and start your streak. All you need is a pencil.