I have a large, cubic object and I wish to tie a rope around it so that the rope is very snug and tight around said object. In a picture, my question is as follows:
Moreover, the path of the rope should exactly be as shown; it cannot go a number of times around the box, or do anything fancy: the whole magic should be in the knot. A square knot is hard to tighten around the object, and one always obtains a sloppy fit. What kind of knot can I use?