One Line: One Stroke Puzzle

Challenge your logic with 999+ Eulerian path puzzles. Draw every line exactly once in a single continuous stroke! No lifting, no repeats.

One Stroke is a minimalist brain-training puzzle game where logic and spatial reasoning are your only tools. Your mission: draw a continuous path that traverses every edge of a graph exactly once. Can you solve the Eulerian trail?

With over 999 procedurally generated levels, One Stroke offers a focused, distraction-free environment to sharpen your mind. Every level presents a new geometric challenge that requires you to find the perfect starting point and the correct sequence of moves.

STRICT ONE STROKE CHALLENGE Unlike other casual puzzles, One Stroke enforces the master rule: if you lift your finger or break the path before completion, the puzzle resets. Every move must be planned, every stroke must be perfect.

GAMEPLAY MECHANICS

• EULERIAN PUZZLES: Classic graph theory puzzles adapted for high-performance mobile gameplay.
• 999+ LEVELS: Progress from simple triangles to complex 12-node geometric networks.
• DYNAMIC VISUALS: Real-time path tracking following your finger for fluid feedback.
• NO REPEATS: Every edge must be crossed exactly once. No more, no less.

WHY PLAY ONE STROKE?

• PREMIUM MINIMALISM: A clean, Skia-powered interface designed for deep focus.
• BRAIN TRAINING: Improve spatial logic, planning, and master graph topology.
• PROGRESSIVE DIFFICULTY: From Easy to Expert tiers—only the sharpest minds solve them all.
• OFFLINE PLAY: Train your brain anytime, anywhere. No internet required.

Put your logic to the ultimate test. Can you find the path and solve every shape with a single touch?