Subtraction App vs SUMO

The developer is a first-dan level player. What rank can you get? If you can reach Rank 1–3 on your first try, that’s pretty amazing. ■ Skills tested Decision-making Flexible thinking Reaction speed Adaptability Memory, and more. Both adults and kids can enjoy this. Think of it as a brain-training mini game and give it a try! ^^

Welcome to SUMO — a calm, clever number puzzle for quick breaks and deep focus sessions. Your goal is simple yet satisfying: connect adjacent tiles so their sum matches the target. Easy to learn, delightfully tricky to master! How it works Target: The number at the top is what your path must reach—no more, no less. Swipe to connect: Drag across neighboring tiles (up, down, left, right). Smart undo: Glide back over your path to shorten it without losing flow. Built-in tutorial: A short animated guide shows the core gestures. Points & rewards: Beat stages, collect stars, and grow your Total Score. Why you’ll love SUMO Relaxing & focused: Soft gradients, clean shapes, no timers—just gentle challenge. For everyone: Perfect for kids, parents, teachers, and logic lovers. Tiny learning boosts: Practice mental math, pattern spotting, and concentration. One-more-round design: Great for bus rides, couch time, or study breaks. Offline friendly: No account needed—play anywhere. Content & progression Multiple worlds with a charming map view to track progress along a playful path. Gradual difficulty: Starts cozy, becomes wonderfully brain-teasing. High replay value: Changing numbers and targets keep levels fresh. “Reload” option: Stuck? Shuffle the current grid (limited, fair, and transparent). Progress at a glance: Total score, levels, stages, and small milestones keep you motivated. Accessibility & feel Clear numerals using monospaced digits for easy reading. Tactile feedback: Crisp highlights, gentle animations, strong contrast in Light & Dark Mode. Intuitive gestures: Tap to start, swipe to connect, slide back to undo. Fair play & privacy No sign-in, no sensitive data. Ads kept sensible (a bottom banner and occasional interstitials at reasonable intervals). Family-friendly by design. Who is it for? Puzzle fans who enjoy relaxed, thoughtful challenges. Parents & teachers who want playful number practice. Kids who like numbers—or might, after SUMO. Anyone who loves a tidy, satisfying game loop. Tips to get started Short paths first: Two or three tiles often beat long chains. Mix edges and center to avoid dead ends. Watch the bar: It’s easy to overshoot—aim precisely. Use Reload sparingly—sometimes a tiny shuffle is all you need. Make your brain happy—play a round of SUMO and discover how relaxing numbers can be. Have fun connecting, adding, and unwinding! Support Questions or suggestions? We’d love to hear them—your feedback helps SUMO get better with every update.