Welcome to Think Sudoku – Play. Think. Win.
Challenge your mind with beautifully designed Sudoku puzzles made for thinkers of all levels. Whether you're a beginner or a true Sudoku master, Think Sudoku is crafted to grow with your skills, providing an experience that's smooth, intuitive, and genuinely addictive.

Why Think Sudoku Stands Out?

Modern, Clean UI
No clutter, just pure Sudoku. Our elegant layout helps you focus on solving, not struggling.

Dynamic Difficulty Levels
Choose from Easy, Medium, Hard, and Extreme. Each level brings smarter logic challenges and unique layouts, not just harder numbers.

Smart Hint System
Not just number reveals! Learn real Sudoku strategies with every hint you use.

History Tracking
Your Sudoku journey is personal. Track your progress by date and difficulty, and challenge yourself to beat your best time.

Customizable Play Style
Highlight duplicates, auto-remove notes, toggle mistakes, and more – tailor the board to your own brain.

Bold, High-Contrast Theme
Think Sudoku features a striking black and red design that’s modern, easy on the eyes, and perfect for extended gameplay. The clean layout ensures every move is clear, whether you're solving puzzles day or night.

Fast Resume & Game Pausing
Life interrupts. With auto-save and pause-resume, your puzzle is right where you left it.

Offline Play
No internet? No problem. Puzzles are available anytime, anywhere.