Classic Sudoku for Android
Smart hints, learning engine, no forced ads, and offline play.
No forced ads
Offline play
Learning engine
Handwriting
Everything you need to improve — and enjoy
- Five difficulty levels — from Easy to Insane.
- Smart hints — a nudge without spoilers.
- Learning engine — Hidden/Naked Singles, X‑Wing, XY‑Wing, Jellyfish.
- Pencil notes — track candidates like on paper.
- Magic Pencil — auto‑fill reasonable candidates.
- Handwriting (Digital Ink) — write the digit; the app recognizes it.
- Undo & Erase — experiment freely.
- Auto‑save — continue where you left off.
- Ad control — optional rewarded ads; Ad‑Free Mode in Settings.
- Offline — play without internet.
FAQ
Are there forced ads?
No. All ads are optional (rewarded). You can enable Ad‑Free Mode in Settings.
Does it work offline?
Yes. You can play offline; progress is saved automatically.
What Android versions are supported?
Android phones and tablets available via Google Play.