One vs Chains

Draw each figure with a single line without lifting your finger from the screen. Train and improve your visual agility, logic and reasoning skills. There are 150 levels, can you solve them all?

Chains — One Line Logic Puzzle Enter a world of chains, spools, and logic puzzles. Connect every spool, create a continuous chain, and discover the path that completes each puzzle. Every connection matters — each choice can change the entire route. STEAMPUNK LOGIC PUZZLES Classic line puzzles reimagined in a world of brass, iron, and mechanical design. Chains turns every solution into a visual creation. Watch your path unfold across the board as chains connect and your route takes shape. Every level combines logic, strategy, and a unique steampunk atmosphere. MASTER THE PERFECT SOLUTION Finishing a level is only the beginning. Earn up to 3 brass spools by solving puzzles without hints or restarts. Master every pack and prove your skills. SMART HINTS THAT GUIDE, NOT SPOIL Stuck on a difficult puzzle? Chains helps you find your way without giving away the solution. Hints can reveal the next steps or rewind your chain back to the moment your path changed direction, letting you discover the correct path yourself. LOGIC CHALLENGES THAT EVOLVE Each pack has its own progression, with levels that gradually become more challenging. • One-way chains that change your strategy • New layouts that challenge your logic and planning • Carefully balanced levels that reward patience and observation WHAT’S INSIDE • 216 logic puzzle levels across 9 packs • More puzzle packs coming with new challenges • One-line chain gameplay with a steampunk twist • Smart rewind hints that guide without spoiling • Earn up to 3 brass spools for each level • Light and dark themes • No timers, no lives, no pressure Play for a few minutes or spend hours solving puzzles across every pack. Every puzzle has a path. Can you find it?