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Cube Movement
In order to better understand how the pieces move in 3-dimensions, one should
understand the concept of each square really being a 'cube'.
________
/ / /|
/___/___/ |
| e | f | |
____|___|___|/|
/ / /| c | /
/___/___/ |___|/
| b | a | /
|___|___|/|
| d | /
|___|/
In this diagram, box A represents the 'box' the piece is in, resting on
the bottom surface of the cube. Squares in boxes E and F represent squares
on the next higher level, just as box D represents a box on a level below.
Movement from A to B represents normal conventional movement. Movement from
A to C would be termed a 'diagonal' move in conventional chess. Movement
from A to D in 3-dimensional chess is no different than A to B, and is simply
a straight-line move in a vertical direction. Movement from A to E is what
is termed as a 'stair step'. For purposes of the king, E is a location adjacent
to A, for it touches A at a line, and the move would be valid. You will
find that a rook can also use the 'side-step' move, as well as the queen
and pawns in certain cases. Movement from A to F employs all three dimensions.
It is legal for the queen, king, and bishop, however, as F touches A at
a point, and thus is an adjacent space. This will be explained below as
well. This 3-dimensional move is termed a 'diagonal stair-step'.
hwloidl@dcs.gla.ac.uk