We propose and discuss here any kind of Chess Variants using Three-Dimensional Spaces; including historical 3D variant proposals as well as new ones; with hints to other types of multidimensional variants (4 or more dimensions). Only join if you have a great mind because we use maths that might be too hard for you.
iampiderm did already.. I've answered to your question instead. I suggest you to read or forum topics, to try understanding at least a little how multidimensional chess works