About Us | Sudoku100

We believe Sudoku is at its best when it's pure. We keep ads restrained in both quantity and frequency, with zero ads in core gameplay areas — user experience always comes first. No forced sign-ups. No unnecessary features that get in the way. Just 100% puzzle, nothing else.

From day one, we've been building a platform where you can open a browser tab and immediately lose yourself in a puzzle. No accounts required, no paywalls, no clutter. Sudoku100 launched in 2025 with one goal: bring sudoku back to its essence — play anytime, anywhere, completely free.

Core sudoku play will always be free. We keep ads restrained in number and frequency, with zero ad interruptions in core gameplay — ensuring a clean, trustworthy experience. No paywalls, no tricks — we believe free shouldn't mean compromise.

The core sudoku experience is open to everyone, while we keep building a richer ecosystem around it. Classic 9×9, Samurai, 16×16, Killer Sudoku, Mini Sudoku, and more — six variants, one platform.

Every puzzle on Sudoku100 is guaranteed to have exactly one logical solution — no ambiguity, no guesswork, just pure logical deduction. Each puzzle undergoes rigorous uniqueness verification before it ever reaches your screen.

A puzzle with multiple solutions isn't a proper sudoku. We reject any grid that doesn't meet our strict uniqueness standard, so you can always trust that the answer is reachable through logic alone.

Our intelligent difficulty calibration engine adapts to your skill level, keeping you challenged but never frustrated. Whether you're a beginner or an expert, you'll always find puzzles that match your ability.

Our difficulty tiers are continuously refined with real player data, ensuring every level — from Beginner to Expert — accurately reflects the solving experience. Every puzzle in your hands earns its difficulty rating.

From classic 9×9 to Samurai, Killer Sudoku, 16×16 giant grids, and Mini Sudoku — Sudoku100 covers every major sudoku variant. Whatever your playing style, there's a puzzle here for you. And with full support across mobile, tablet, and desktop, you can play anywhere, anytime.

We're constantly pushing the boundaries of sudoku, introducing new variants and gameplay. On the device side, we already support iOS, Android, and Web — with native apps and offline mode on the roadmap, making coverage truly everywhere.

Our North Star: building the ultimate home for 100 million sudoku lovers worldwide. We're creating more than just a game — we're building a global community united by the love of logical deduction.

Daily challenges, global battle arena, AI solver that explains every step, and a public API used by developers worldwide. One hundred million. That's the number we're building toward.