Knot Or Not?
Also known as:
This puzzle requires only good visuo-spatial ability. Given images of slack lengths of looped rope, the solver must calculate which would form a knot and which would not. This is a version of the Tangled Lines puzzle which is a common feature of many children's puzzle magazines.
Calculate which of the lengths of rope etc will form a knot when pulled and which will not.
Related PuzzlesTangled Lines