TRACE vs Chains

TRACE is a daily puzzle game built on a beautiful mathematical idea: draw every line in a graph exactly once, without lifting your finger. Each day, a new graph appears — the same puzzle for everyone. Drag from one of the two marked endpoints, connect node to node, and trace every edge. There's only one valid path through the graph. It's yours to find. DAILY PUZZLE A new graph drops every day at midnight. One puzzle, same for everyone. ARCHIVE Missed a day? Replay any of the last 30 puzzles at any time. PRACTICE MODE Sharpen your instincts with unlimited Easy, Normal, and Hard graphs whenever you like. STREAK & SHARE Track your daily streak and share your result with a single tap. NO ADS. NO ACCOUNTS. Just you and the graph. — The puzzle is rooted in Euler's theorem on graph traversal — the same insight that founded graph theory in 1736. The rules take seconds to learn. The depth takes longer to master.

Connect every spool with one unbroken chain. Draw a path from spool to spool until every link is used. One wrong turn, and the chain can’t finish — so each move matters. NEW LOOK, SAME PUZZLES Chains has a new design: a calm board, a clear chain, and light or dark theme. The logic is unchanged. Only the look is new. MASTER THE PERFECT SOLUTION Clearing a level is just the start. Earn up to 3 spools when you solve without hints or restarts. Finish every pack and collect them all. HINTS THAT GUIDE, NOT SPOIL Stuck? A hint can show the next steps, or rewind your chain to the moment the path went wrong — so you still find the route yourself. PUZZLES THAT GROW WITH YOU Each pack gets harder. • One-way chains that change how you plan • New layouts that need a second look • Levels paced for patience, not speed WHAT’S INSIDE • 216 logic puzzles in 9 packs • More packs coming • One-line chain gameplay • Smart rewind hints • Up to 3 spools per level • Light and dark themes • No timers, no lives, no pressure Play for a few minutes, or work through every pack. Every puzzle has a path. Can you find it?