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This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2001-10-20
 Author: Bruce  Balden and Hans L. Bodlaender. Inventor: Dr. Ferdinand  Maack. Raumschach. The classical variant of three-dimensional chess: 5 by 5 by 5. (5x5x5, Cells: 125) (Recognized!)[All Comments] [Add Comment or Rating]
Ben Reiniger wrote on 2019-07-15 UTC

@Kelvin, I think these are equivalent, because of the current text's requirement "always in the same coordinate plane," or from the later "never step through the corner of a cell."

Also equivalent, I think, is the one-orthogonal one-diagonal-outward if this page treated the unicorn's "triagonal" as non-diagonal.  I think maybe the easiest description would be "like a knight in any of the coordinate planes," but that's probably pretty subjective.

If you disagree with any of these equivalences, could you point out an example move that one has that the other doesn't?