NineGrid: Logic Sudoku Puzzle

NineGrid is a fresh take on Sudoku that changes how you think — and how you play.

Instead of typing into a number pad, every empty cell shows all 9 candidates right inside it. Tap a candidate to eliminate it or confirm it as the answer. The puzzle is the interface.

HOW IT WORKS
→ Every empty cell starts with all 9 candidates visible
→ Remove mode: tap a candidate to cross it out
→ Select mode: tap a candidate to lock it in as the answer
→ Make a mistake and you lose a heart — think before you tap

It's classic Sudoku logic, but the interaction feels completely new. You're not filling in answers — you're narrowing down possibilities, just like a real solver would.

FEATURES
• 4 difficulty levels — Easy, Medium, Hard, and Expert
• Daily Challenge — a new puzzle every day, same for everyone worldwide
• Hint system — auto-solve the easiest deducible cell when you're stuck
• Hearts system — limited lives keep every move meaningful
• Full stats — track solve rate, streaks, and best times per difficulty
• Dark mode — easy on the eyes day or night
• 8 languages — English, Spanish, French, German, Portuguese, Japanese, Korean, Chinese