from Simon Tatham's Portable Puzzle Collection

Sorry, this Javascript puzzle doesn't seem to work in your web browser. Perhaps you have Javascript disabled, or perhaps your browser doesn't provide a feature that the puzzle code requires (such as typed arrays). These puzzles have been successfully run in Firefox 19, Chrome 26, Internet Explorer 10 and Safari 6.

Form a single closed loop out of the grid edges, in such a way that every numbered square has exactly that many of its edges included in the loop.

Click on a grid edge to mark it as part of the loop (black), and again to return to marking it as undecided (yellow). Right-click on a grid edge to mark it as definitely not part of the loop (faint grey), and again to mark it as undecided again.

When you have mastered the square grid, look in the Type menu for many other types of tiling!

Full instructions | Back to main puzzles page

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(last modified on Wed Dec 28 01:41:02 2016)