| Click on the background to delete a square. Click on the foreground to make the knot. |
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Click to change type:
Make a Celtic knot by clicking on the left. If you click on several in a row, you get a twisted rope. Click on more to make a rectangle to make a true Celtic knot. However, rectangles are not compulsory! If knots share an edge, they will join up.
If you click on a different type of strand, your current pattern will change to it.
Click here for some examples made using this page.