Taters Pete wrote on Thu, Mar 3, 2022 06:08 PM UTC:
The most difficult part in making a tri dimensional chess board, is ensuring each main board overlaps the board below it by exactly a half, if you intend to use any of the main stream rule sets.
I play the World Tri Dimensional Chess Federation rules (http://w3dcf.com/information/laws) as they are more intuitive for a Western 2D chess player and lack the one sided 'higher board' rule of Andrew Bartmess' Federation Standard rules.