Arithmix: Killer Sudoku

Sudoku meets math. Fill the grid so every row, column and box has each number once, and every cage hits its target with +, −, × or ÷. Start small on 4×4 and 6×6 boards while a friendly coach shows you the ropes, then grow into full 9×9 killer sudoku. Every one of the 100 levels has exactly one solution, so you never have to guess. FEATURES • Learn by playing: no long tutorial, the coach teaches you on your first puzzle • 100 levels in 5 chapters: Easy, Medium, Hard, Expert and Master • Puzzle of the Day: the same puzzle for everyone, build your daily streak • Notes, undo and hints when you get stuck • Satisfying feedback: rows, boxes and cages light up, plus combos • Stars, achievements and chapter milestones • Light and dark themes, 9 languages, iPhone and iPad • Play as a guest, no sign-up needed PREMIUM Arithmix is free to play. A one-time Premium purchase removes ads and adds bonus hints; extra hint packs are optional. Terms: https://arithmix.app/terms.html Privacy: https://arithmix.app/privacy.html