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Raumschach. The classical variant of three-dimensional chess: 5 by 5 by 5. (5x(5x5), Cells: 125) (Recognized!)[All Comments] [Add Comment or Rating]
H. G. Muller wrote on Thu, Feb 18, 2016 09:20 PM UTC:
> <i>in Raumschach there are possible mating positions with a K & B plus R</i> <p> How do you envisage that? Even in a corner the bare King can only be limited to a plane, and the other pieces would have to cover 4 squares in that plane (including the one the bare King is on). A Bishop could check and cover one of those at the same time, but the only way for a Rook to cover the other two would put it in a place that blocks the Bishop from checking. <p> I think you need at least two Rooks to have a mate position. And I am not sure that is forcible.