HITORI - Number Logic Puzzle

Erase duplicate numbers and keep all white cells connected in this logic puzzle.

Welcome to No Duplicate Logic Puzzle, a pure and classic number puzzle designed for true puzzle lovers.
This game is inspired by traditional pencil-and-paper logic puzzles, where thinking matters more than speed, and every puzzle can be solved using logic alone—no guessing, no luck.
Your goal is simple to understand, yet deeply challenging to master.
🧩 HOW TO PLAY
Each puzzle consists of a grid filled with numbers.
You must black out some cells while keeping others white, following three simple rules:
No duplicate numbers are allowed in any row or column among white cells.
Black cells cannot touch each other horizontally or vertically.
All white cells must remain connected as a single group.
That’s it.
No timers. No pressure. Just logic.
🧠 PURE LOGIC, ZERO GUESSING
Every puzzle in No Duplicate Logic Puzzle is 100% logically solvable.
No random outcomes
No trial-and-error
No forced hints
If you think carefully, the solution will always reveal itself.
This makes the game especially satisfying for players who enjoy:
Logical deduction
Pattern recognition
Careful step-by-step reasoning
✏️ CLASSIC PUZZLE FEEL, MODERN DESIGN
Inspired by classic Japanese logic puzzles, this game brings the clean and focused feeling of solving puzzles on paper into a modern mobile experience.
Minimalist black & white design
Clear, distraction-free interface
Smooth and responsive touch controls
Everything is designed to keep your mind focused on the puzzle itself.
📚 MULTIPLE DIFFICULTY LEVELS
Whether you are new to logic puzzles or a seasoned puzzle expert, there is a challenge waiting for you.
Beginner-friendly grids for learning the rules
Medium puzzles that require deeper deduction
Hard puzzles designed to test even experienced solvers
The difficulty increases naturally, helping you improve your logical thinking step by step.
🎯 MADE FOR PUZZLE ENTHUSIASTS
This game is perfect for players who enjoy:
Logic puzzles
Number puzzles
Deduction-based games
Sudoku-style reasoning
Brain training without time pressure
If you enjoy puzzles where every move has meaning, this game is for you.
🚀 FEATURES
Hundreds of hand-crafted logic puzzles
Clean and intuitive user interface
No time limits, play at your own pace
Offline play supported
Designed for phones and tablets
Regular updates with new puzzles
🧩 WHY YOU’LL LOVE IT
✔ Easy to learn, hard to master
✔ Pure logic, no guessing
✔ Calm and focused gameplay
✔ Perfect for short sessions or long thinking time
Train your brain, sharpen your logic, and enjoy the satisfaction of solving puzzles the right way.
Download No Duplicate Logic Puzzle today and experience a true classic of logical thinking—reborn for mobile.