High Quality Content by WIKIPEDIA articles! In a Pandiagonal magic cube, all 3m planar arrays must be panmagic squares. The 6 oblique squares are always magic. Several of them may be panmagic squares.Gardner called Langman's pandiagonal magic cube a 'perfect' cube, presumably not realizing it was a higher class then Myer's diagonal magic cube. A diagonal magic cube has 3m plus 6 simple magic squares.A pandiagonal magic cube has 3m panmagic squares and 6 simple magic squares (one or two of these MAY be pandiagonal). A perfect magic cube has 9m panmagic squares.