Connect the Boxes
In the diagram below, can you connect each small box on the top with its same-letter mate on the bottom with paths that do not cross one another?
For example, the following paths are invalid as they crossed other paths:
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1 solution
(i) Draw a straight line joining the upper to the lower A box.
(ii) Draw a curved line from the upper C box, over the upper A box and then back down to the lower C box.
(iii) Finally, from upper box B draw a curved line over the upper C box, swing around going over the upper A box but under the line from upper box C , and then continue down to lower box B .