OneLine: Dot Connect

Draw a single line to connect all dots! 50 handcrafted Euler path puzzles across 4 chapters. Deep navy theme, smart hints. Pure logic, zero distractions.

Welcome to OneLine: Dot Connect — the elegant Euler path brain teaser that challenges your logic and spatial reasoning.

 【How to Play】

 Draw a single continuous line through every dot on the grid without lifting your finger or revisiting any dot. Simple to learn, deeply
 satisfying to master.

 【Game Features】

 ■ 50 Handcrafted Puzzles
 Four chapters of increasing difficulty, from simple 3×3 grids to complex 8×8 challenges. Each level is a unique brain teaser designed to
 make you think.

 ■ Two Play Modes
 • Quick Play — jump right in with a random puzzle
 • Level Select — choose your challenge and track progress

 ■ Star Rating System
 Earn up to 3 stars per level based on performance. Complete all 50 puzzles with perfect ratings to prove your mastery.

 ■ Smart Hint System
 Stuck? Use hints to guide your thinking without giving away the solution. Hints highlight the next logical step.

 ■ Full Undo Support
 Made a wrong turn? Undo any move at any time. Restart puzzles freely — no penalties, no pressure.

 ■ Intuitive Touch Controls
 Smooth touch-drag controls optimized for iPhone. Draw your line naturally with a single finger.

 【About Euler Path】

 The Euler path problem traces back to mathematician Leonhard Euler and the famous Seven Bridges of Königsberg. Your goal: find a path
 through every node exactly once. A classic problem that has fascinated minds for nearly 300 years.

 【Privacy Commitment】

 Fully offline. No personal data collected, no ads, no in-app purchases, no internet required. Download and play immediately — no account
 needed.

 Start your OneLine journey today!