Dr. Ferdinand Maack published Anleitung zum Raumschach: Dreidimensionales Schachspiel (1908), the “Instructions for Raumschach: Three-Dimensional Chess Game”. Herein, he presented 8×8×8 Raumschach (referred to later as SIII8).
Dr. Ferdinand Maack published Spielregeln zum Raumschach (1913), the “Game Rules of Raumschach”. Herein, he presented both 4×4×4 Raumschach (versions SIII4 A and SIII4 B) and 5×5×5 Raumschach (version SIII5 A).
Dr. Ferdinand Maack published Raumschach: Einführung in die Spielpraxis (1919) the “Raumschach: Introduction to Practical Play”.
In A Guide to Fairy Chess (1969/71, pp. 16–18), Anthony Dickins (1914–1987) printed the rules reported by Thomas Rayner Dawson (The Chess Amateur, 1926) for the “Normal Form” of Raumschach, the canonical version of the game of three-dimensional chess.
In The Classified Encyclopedia of Chess Variants (2007, p. 229), D. B. Pritchard provided the rules for the “Normal Form” of Raumschach.