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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!

Courtesy of Simon Tatham's Puzzle Collection via the MIT license.


We hope that the free math worksheets have been helpful. We encourage parents and teachers to adjust the worksheets according to the needs of the child. For more difficult questions, the child may be encouraged to work out the problem on a piece of paper before entering the solution. We hope that the kids will also love the fun stuff and puzzles.

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