SamuraiKu: Samurai Sudoku

No ads. No packs. No subscription — ever. Just an endless supply of samurai and classic sudoku, generated fresh on your device, every time. The samurai boards are five overlapping 9x9 grids, and every puzzle is checked for a unique solution before you ever see it. Plays fully offline.

INFINITE PUZZLES, FIVE DIFFICULTIES
- Samurai and Classic boards, from gentle Beginner to fiendish Expert
- Difficulty tuned by the actual solving techniques each puzzle requires
- A fresh Daily Classic and Weekly Samurai for everyone, with streaks

SCAN PUZZLES FROM PAPER
- Point your camera at a newspaper or book puzzle and play it in seconds
- Reads both Classic and Samurai grids, entirely on-device

PLAY IT YOUR WAY
- Smart hints that name the technique, from naked singles to X-Wings
- A guided Learn mode that teaches real solving techniques step by step
- Pencil marks with auto-candidates, plus full undo and redo
- On iPad, write digits by hand with Apple Pencil
- Combo scoring: clear a row, column and box in one move for a 4x multiplier

COMPETE AND COLLECT
- Game Center time leaderboards for the Daily and Weekly
- 21 achievements with hand-carved hanko seal badges
- Share a puzzle and race a friend on the very same board

YOURS, EVERYWHERE
- Plays fully offline
- iCloud keeps your progress in sync across your devices
- Localized into 10 languages

ONE PRICE, NOTHING ELSE
- No ads, no in-app purchases, no subscription
- No accounts, no tracking, no data collected

Five grids as one. Pick up the brush.