Sudoku vs Sumaddle

We never interrupt your thinking! There are no full-screen or video ads—only a small banner at the bottom of the screen. There are no in-app purchases either. You can enjoy every single puzzle, from easy to extreme, completely free of charge. ## The Ultimate Minimalist Sudoku A pure Sudoku experience where you can fully immerse yourself in the classic number puzzle! No unnecessary features! We removed daily challenges, achievements, annoying notifications, and long tutorials. ## Play Anytime, Anywhere Perfect for your daily commute, waiting times, or relaxing before bed. Enjoy at your own pace! 100% playable offline. All features are available even without an internet connection. ## User-Friendly Design for All Ages A clean, purple-themed UI that is easy on the eyes. With large numbers and intuitive controls, it is comfortable for everyone from beginners to seniors. ## 2,000+ Puzzles & Multiple Difficulties - Easy: Perfect for beginners learning the basic rules. - Medium: Standard puzzles that require a bit more thought. - Hard: Challenging puzzles requiring advanced logical thinking. - Extreme: A true challenge for Sudoku masters. With over 2,000 puzzles included, you can enjoy endless hours of brain-teasing fun! ## Train Your Logical Thinking Every puzzle is mathematically verified to be solvable by pure logic alone—no guessing required. Great brain training to improve your concentration, memory, and cognitive skills! ## The Culmination of Our Series From a series with over 1,000,000 total downloads! We have combined our previous 5-color apps (Red, Blue, Green, Orange, Purple) into this single, definitive purple edition. ## Classic Sudoku Rules - Fill each column with numbers 1-9. - Fill each row with numbers 1-9. - Fill each 3x3 block with numbers 1-9. ## Helpful Features • Pen Mode: Enter your final answers. • Pencil Mode: Take notes for candidate numbers. • Undo/Redo: Easily fix any mistakes. • Eraser: Clear a selected cell instantly. ## A Stress-Free Experience - No penalties: Make a mistake? No problem, there are no game overs. - Banner ads only: No intrusive ads to disrupt your focus. - All puzzles are unlocked from the start. - All features are available immediately. Highly recommended for those who want to enjoy pure Sudoku without any stress. The definitive minimalist Sudoku app, perfect for your daily brain training!

This type of logical puzzle was first seen in the Japan Puzzle Championship 2006 and is sometimes known as Doppelblock, or Smashed Sums. When played with pencil and paper, these puzzles can be hard work to solve. Sumaddle changes that by transforming the puzzles into interactive brain teasers that unfold before your eyes. Each puzzle has a unique solution. Finding the solution involves fitting the number combinations to the clues. The app makes it easy to view the possible combinations, you don’t need to do any sums in your head. Instead, you are able to focus on using logic to narrow down the combinations and find a fitting arrangement. The puzzles come in a range of sizes and difficulties, to suit all levels of skill and puzzling purposes. Choose a small puzzle to idle away a minute or two while waiting in a queue, or a big puzzle to give your brain some exercise during a coffee break! Some reasons why you will enjoy playing Sumaddle: • more than 150 puzzles are included for free • all puzzles can be solved with pure logic, no mental arithmetic required • the sophisticated built-in help can explain the logical reasoning at each step and also fix mistakes if you go wrong • the built-in help is completely free, use it as much as you like • works offline (great for long journeys) • a high standard of accessibility, including comprehensive support for VoiceOver • ad-free play - there are absolutely no ads! IGRS age rating (Indonesia Game Rating System): 3+ Designed and developed in Winterthur, Switzerland