Nine Squares : Sudoku Puzzle

Nine Squares is a clean, classic Sudoku for everyone who loves number puzzles, from first-timers to seasoned solvers. Pick a level, tap a cell, and start solving. SIX LEVELS OF CHALLENGE Choose Easy, Medium, Hard, Expert, Master or Extreme. Every puzzle has exactly one solution, so you never have to guess. Start relaxed and work your way up to the toughest grids. DAILY PUZZLE AND MONTHLY CALENDAR A new daily puzzle is waiting every day, and it is the same for every player. Build a streak, then check the calendar to see the days you have solved. Complete every day of a month to earn that month's badge. UNLOCKABLE COLOR THEMES Win games, keep your streak and collect badges to unlock new color themes. Every theme works in both light and dark mode. HELPFUL TOOLS - Notes: jot down candidate numbers, with automatic clearing when you place a digit - Hints: get unstuck with a hint when you need one - Undo and Erase: fix a slip without stress - Smart highlights: the row, column, box and matching numbers light up for you - Number counter: see at a glance how many of each digit are left TRACK YOUR PROGRESS See games won, win rate, wins without mistakes, best time, average time and best score for each level. PLAY YOUR WAY - Pause and resume anytime, your game is saved automatically - No account or sign-up needed - Sound effects and vibration can be switched on or off - Light and dark mode Nine Squares is free to play and contains ads. You can watch an optional rewarded video to get an extra hint or one more chance after three mistakes. Train your brain, relax, and enjoy a puzzle a day. Download Nine Squares and start solving!