Sudoku - Classic Puzzle

Sudoku is the classic 9x9 number puzzle, made clean and modern. Fill the grid so every row, column and 3x3 box contains the digits 1 to 9 — every puzzle is generated with a single unique solution, so logic alone is always enough.

FEATURES
• Three difficulty levels: Easy, Medium and Hard
• Unlimited puzzles — a fresh grid every time
• Pencil notes to track candidate numbers
• Undo your moves anytime
• Smart hints when you get stuck
• Score system that rewards fewer hints
• Dark and light themes
• Available in 21 languages
• Works fully offline — play anywhere
• Optional account to sync your scores across devices

HOW TO PLAY
Each row, each column and each 3x3 box must contain the numbers 1-9 exactly once. Tap a cell, then tap a number to place it. Use note mode to jot down candidates, and use a hint to reveal a cell when you are stuck.

Sudoku is free to play and supported by ads. No purchase required — download and start solving!