[ Help | Earliest Comments | Latest Comments ][ List All Subjects of Discussion | Create New Subject of Discussion ][ List Earliest Comments Only For Pages | Games | Rated Pages | Rated Games | Subjects of Discussion ]Single Comment Tetrahedral Chess. Three dimensional variant with board in form of tetrahedron. (x7, Cells: 84) [All Comments] [Add Comment or Rating]George Duke wrote on 2009-06-27 UTCTetrahedral is one of the four geometries Gilman's system explores within ground-breaking M&Bxx. They are squares, cubic, tetrahedral and hex-prism, three of the four being 3-D. Pioneered by Mark Thompson in 2002, Tetrahedral is tetrahedron, pyramid, turned at first in unaccustomed angle. Mark Thompson also wrote ''Defining the Abstract'' that is still easily locatable on web from defunct site Games Journal. Gilman explains to Thompson 18.January.2004 that ''Yes I did mean square of distances. The base-36 was simply a way to represent every distance as a single character.'' The squares are in fact rhombic dodecahedra, he and McComb enlighten. Gilman uses base 36, instead of 10 or 2 or 16, for convenience to get leap lengths. I had the discussion down once but have to go over it again. Oh for bygone days of quality before these degenerate times.