Temporal Chess
by L. Lynn Smith

Special Thanks to Jens Meder for the idea of the time-warp into the future.


Equipment:

1  4x4x4 playing field
1  standard set of chessmen
1  standard set of checkers(draughts), preferably red and black


Play begins with an empty field.  The checkers are divided equally(both colors)
between the players.  

Each player introduces their King on to a vacant cell in turn.  Then each player 
may in turn preform one of the following:  introduce a new piece, move a piece, 
or time-warp a piece.

All pieces are introduced on to vacant cells, and are not allowed to give immediate
check.

Pieces are moved according to their classic 3D movements, Pawns are replaced with
Unicorns.

All pieces can be warped either from the future or into the future.

A piece is time-warped from the future by "cloning" a piece located upon the field.
A duplicate piece preforms a legal move from the location of the "original" piece.
The "original" piece is denoted with a number of red checkers, up to six.  The
player is allowed to move either "duplicate" and "original" on subsequent turns.
At the end of each turn, the player removes one of the checkers from the "original" 
piece.  The "original" piece is removed from the game with the last of the checkers.
(If there is no extra piece available for the "duplicate", a player can merely mark
one of the checkers with a sticker noting the value of the "original" piece and use
the current piece for the "duplicate".)

A player time-warps a piece into the future by placing a number of black tokens, up to 
six, with it.  Such a piece is considered to have "dis-appeared" and not allowed to 
be move from its cell until it "reappears" in the future.  Other pieces are allowed 
to move through and upon a cell occupied by such a piece.  At the end of each turn, 
the player removes one of the checkers from this piece.  When all the checkers are gone, 
it has "re-appeared".  Any other piece, regardless of owner, which is located on the 
cell of a "re-appearing" piece is considered captured and removed from the game.  The 
"re-appearance" of a piece is automatic and not considered a turn in itself.

Each player is only allowed one warp, either to the future or from the future, to exist 
during a turn.  Since the checkers are not removed until the end of the turn, a player 
must wait to the next before creating a new warp.  A player is not allowed to add checkers
to a warp.

The game is won by check-mating the opponent King or capture of an "original" piece of a 
time-warp from the future.  The latter condition of this rule is due to a paradox, since a
captured "original" piece would then be unable to warp back in time.  And yes, the King 
can time-warp into the future to avoid a current check.  And the King can time-warp from 
the future, its "duplicate" would be subject to the check-mate portion of the rule while 
the "original" is now subject to the capture portion of the rule.