Sudoku – Classic Number Puzzle

Five difficulties from Easy to Extreme, a daily puzzle everyone shares, and notes you write in pencil. No hints, no game-overs — just you and the grid.

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

• Five difficulties: Easy, Medium, Hard, Expert, Extreme
• Difficulty means technique, not clue count — Extreme genuinely needs the advanced patterns, and Expert stops right below them
• 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
• A wrong move never ends the game; finish at your own pace
• Best and average times per difficulty, plus separate no-notes records
• Game Center leaderboards: best times and a daily ranking
• Records and your game in progress follow you across devices over iCloud
• Light, dark, or follow the system
• Fully playable offline

◆ ON IPAD

• Write answers straight into a cell with Apple Pencil — the handwriting is recognized as you go
• Double-tap the Pencil to switch between notes and answers
• A wide layout that puts the header on one line and keeps the board large

◆ ACCESSIBILITY

• VoiceOver labels for every cell and key
• Dynamic Type across the interface

Open today's puzzle and start your streak. All you need is a pencil.