6 hours ago, Tramp Graphics said:My “geometric thinking” is just fine.
2 solid objects not being able to occupy the same location in 3 space is a simple concept. A less offensive assumption than you failing to grasp that extremely simple concept (as in an explanation backed up by your past by hand attempt at deck plans) is that you have problems with "puzzles" involving mentally assembling 3D geometric shapes when you don't have the physical (or virtual on a computer) pieces in front of you