Sudoku Kensei app icon
Now Available on the App Store

Sudoku Kensei

A powerful Sudoku assistant for solving, scanning, and analyzing puzzles. Learn smarter, solve faster, and manage even the hardest boards with confidence.

Sudoku Kensei is designed for every kind of solver. Newer players get clear help with foundational techniques, while experienced players get powerful tools for advanced pattern hunting, candidate management, and iterative analysis.

Download on the App Store Support

Screenshots

Solve Puzzles Solve Puzzles
Smart Finders Smart Finders
Scan & Import Scan & Import
Custom Colors Custom Colors
Crosshatch Mode Crosshatch Mode
Load Games Load Games
Settings Settings

Solve Smarter

Built-in finders highlight solving opportunities as you work, making it easier to spot the next move without losing momentum.

Singles, exclusions, fish patterns, and more

Scan Any Puzzle

Import a puzzle from a printed page, another screen, or a photo in your library. Review recognized digits and correct anything before solving.

Camera and photo import

Helpful for newer solvers

  • Learn and apply basic techniques like Naked Singles and Hidden Singles.
  • See solving opportunities highlighted directly on the puzzle.
  • Build confidence without getting overwhelmed.

Powerful for experienced solvers

  • Manage advanced patterns like X-Wing, Swordfish, and Jellyfish.
  • Use multiple and iterative finders to push through hard puzzles.
  • Keep complex candidate interactions organized and visible.

Candidate Management That Stays Out of Your Way

Automatically track pencil marks, eliminate impossible candidates, and convert singles with a tap. Sudoku Kensei helps reduce busywork so you can focus on strategy.

Save & Share

Save your games, export puzzles as QR codes, and import them on another device. Sharing a puzzle with a friend is simple.

Customize the Experience

Choose colors, font sizes, entry mode, and display preferences to make the app fit the way you solve.

Pro Version

Unlock advanced solvers, fish pattern finders, unlimited scanning, and QR import/export with a one-time purchase.

Built for iPhone. Best on iPad.

Sudoku Kensei is a great way to solve Sudoku puzzles on iPhone, especially in landscape orientation. On iPad, the larger screen gives you the best experience for scanning puzzles and working with multiple finders and solvers side by side.