En Passant Chess
In standard chess, a pawn moving more than one step (i.e. two steps) can be captured by another pawn en passant on the move immediately following the multistep move.
Let us extend this rule to all pieces:
- We use knightriders
instead of knights. The king is a bit special (see
below), and we use the other normal chess pieces.
- A piece making a multistep move can be captured by an opponent's piece
on its way, as long as this capture is done on the move immediately
following the multistep move.
- A piece making a multistep capture can be captured the same way. The
piece it captured is not returned to the board (i.e. the capture is not
- As a king only makes a multistep move in castling, and it is already
illegal to move it through a checked square, it cannot be captured en
passant. It may however capture another piece en passant.
- A king may make a knight (not knightrider) move, in addition to its
normal king move, to capture another piece en passant. It may not use
this move otherwise, e.g. to capture another piece directly.
- The knightrider only steps on the squares a knight-move away from one
another. For example, a knightrider moving from g1 to d7 can only be
captured at f3 and e5. We can say that the move unit of a knightrider is
a knight move.
- All other pieces step on all squares between the starting and ending
squares, so their move unit is a king move. Of course, the move unit of
a rook is a
and that of a bishop is a
ferz move only.
- The only multistep move a pawn may make is the two-steps initial move,
but beware that in this game it can be captured en passant by any piece!
- Other rules are the same as in normal Chess.
Written by Andy Kurnia. HTML conversion by David Howe.
WWW page created: October 30, 1998.