Example of black pawn movement
________________
/ N / / / /:
/___/___/___/___/ :
________ B / / / / :
/ / /:_/___/___/___/ :
/___/___/B:/ p / x / x /____:_______
/ / /:_:___/___/___// / / /:
/___/___/N:/ / / //___/___/___/ :
:___:___/___/___// / / / :
: /___:___/___/___/ :
: / x /: / / /____:_______
: /___/_:_/___/___// / / /
:/ xN/ :/ / //___/___/___/
:___/___:___/___// / / /
: /___:___/___/___/
: / /: / / /
: /___/_:_/___/___/
:/ / :/ / /
:___/___:___/___/
Attack boards can significantly affect movement if placed between levels.
In such a case, it must be treated as any other board, and can be either
an advantage or disadvantage. Take, for example, the case of this rook:
________________
/ / x / / /:
/___/___/___/___/ :
________ / x / / / :
/ / x /:_/___/___/___/ :
/___/___/ :/ x / / /____:_______
/ / /:_:___/___/___// / / /:
/___/___/x:/ R / x / x //___/___/___/ :
:___:___/___/___// / / / :
^ :/ x:/ x:/:_:___/___/___/ :
Attack -> :___:___: :/: / / /____:_______
Boards / x / /:_:_:_/___/___// / / /
/___/___/z:/ x:/ / //___/___/___/
:___:___:___/___// / / /
: /___:___/___/___/
: / /: / / /
: /___/_:_/___/___/
:/ x / :/ / /
:___/___:___/___/
Note how with the intervening attack board this rook has access to white's
defense board (possible moves shown with x's), yet the 'z' indicates the
only possible move in the direction of white if there were no attack board
present. In this case, the attack board was definitely an advantage! In
the case of a pawn seeking to reach the opponent's defense board, it could
make the trip longer, depending upon the circumstances.
Attack boards also create interesting circumstances when positioned not between two normal levels, but instead as diagrammed here:
________
/ / g /
/___/___/ <--- attack board in question
/ b / a /:
/___/___/ :
__________:_:_:_: : :
/ / / :/ f:/: : :
/___/___/___:___: : : :
________ / / / /: : : :
/ / /:_/___/___/___/ : : : :
/___/___/ :/ / / /__:_:_:_:___
/ / /:_:___/___/___// e:/ c:/ d /:
/___/___/ :/ / / //___:___:___/ :
:___:___/___/___// / / / :
: /___:___/___/___/ :
: / /: / / /____:_______
: /___/_:_/___/___// / / /
:/ / :/ / //___/___/___/
:___/___:___/___// / / /
: /___:___/___/___/
: / /: / / /
: /___/_:_/___/___/
:/ / :/ / /
:___/___:___/___/
In this situation, the cube model of movement must be altered. Although there
is an immense ammount of space between this attack board and the neutral
board, certain squares of the two are considered adjacent. To study the
relationship, we will use the example of the rook. Should a rook be
posisitioned at location A, not only does it have access to the black defense
board, but it can also reach squares C and D by either moving vertically
or stair-stepping. Of course, it's final destination might be the white
defense board in this case as well. Furthermore, a rook at position B has
access to position C through the stair-step move. Now taking the example
of a bishop at position G, it has access to position D via the diagonal
stair-step. The question might be asked, however, if either the rook or
bishop in these examples has access to position E. The answer is that they
do not, as square F is effectively in the way, and must be moved to instead.
If one were to view this whole example from above, it might become more
clear how all these distant squares are truly adjacent. Of course, all of
the examples used can also be reversed, with pieces on the neutral board
having access to the attack board in this case ...
Here is a working model of the boards you can use to play on. Print it out and make copies. For the attack boards, cut them out and place them in the appropriate places.
________
/ r / p /
/___/___/
/ k / p /:
/___/___/ :
: : : :
: :_:_:___________
:/ n:/ p / / /:
________:___:___/___/___/ :
/ q / p /:b / p / / / :
/___/___/_:_/___/___/___/ :
/ r / p /:b:/ p / / / :
/___/___/_:_:___/___/___/ :
:/ n:/ p / / / :
:___:___/___/___/ :
: :_______:_______
: /: / / / /:
: /_:_/___/___/___/ :
: / :/ / / / : ________
: /___:___/___/___/ : / P / R /
: / /: / / / : /___/___/
: /___/_:_/___/___/ : / P / K /
:/ / :/ / / : /___/___/
:___/___:___/___/ : : : : :
: :_______:_:_:_:_:
: /: / / P:/ N:/
: /_:_/___/___:___:
: / :/ / P / B /
: /___:___/___/___/
: / /: / P / B /
: /___/_:_/___/___/. .________
:/ / :/ P / N / / P / Q /
:___/___:___/___/. ./___/___/
/ P / R /
/___/___/
Notice that one attack board has been misplaced. The reason is that it cannot
easily be placed in this model without covering up other parts of the board.
You can simply keep a file with this diagram for the game you are playing, and
update it using letters for pieces (caps for white, lower-case for black), and
editing in the attack boards where necessary. Just remember to space them
evenly between layers, and you should include the :'s to clarify vertical
relationships. You could even use this file to mail back and forth between
players to visually diagram each move made!
Should there be any questions regarding this version of the rules for Trek 3-D Chess, please contact Tony at thamilton@ch3.intel.com via internet.