Kross: Cross Every Line

One path. Every line. Once. Kross is a logic puzzle game built around one deceptively simple challenge: draw a continuous path that crosses every line exactly once. Plan your route carefully. Avoid the red nodes, never cross the same line twice, and do not trace along the lines. If you lift your finger, resume precisely from the hand marker to keep the path continuous. Every puzzle is designed as a clean geometric challenge. The Learn chapter introduces the rules, while Flow, Focus, and Master gradually add more subtle routes, strategic decisions, and clever traps. Difficulty comes from the logic of the solution, not from visual clutter. Inspired by Leonhard Euler’s analysis of the Seven Bridges of Königsberg, Kross brings the spirit of a classic mathematical puzzle into a modern geometric challenge. FEATURES • 300 carefully designed logic puzzles • Every level validated to have a solution • Four progressive chapters: Learn, Flow, Focus, and Master • Clean, distraction-free visual design • Interactive hints that guide you along the solution • Precise touch controls with sound and visual feedback • Optimized layouts for iPhone and iPad • No timers or lives — solve each puzzle at your own pace KROSS PREMIUM Kross is free to play, with levels unlocking progressively as you complete them. Upgrade to Kross Premium at any time to unlock all levels immediately, remove interstitial ads, and use hints without rewarded ads. One purchase. No subscription. Can you find the one path that crosses them all?