I wrote this in the matter of one extremely caffeinated night, after having come up with the idea after playing, of all things, gldoom - I fell in some water, and, having been tinkering with a different game in Zillions for hours beforehand, thought to myself "Boy, it would stink if my pawns fell in water or something."

I then went and wrote out this chess variant, typically the same except for the fact that the board now sports several types of terrain.
Below is a game I played of it with Zillions which has most everything shown, terrain-wise.

The terrain types are as follows:

Nothing - A normal square, before anything has landed on it. It does nothing.
Grass - Grass, a harmless terrain type left behind by pawns, and sometimes the King.
Mud - A thick brown ooze of dirt and water, left behind by Knights.
Water - A large puddle, left behind by Bishops.
Ice - A small patch of ice, left behind by the Queen.
Void - The absence of all matter, left behind by the Rook.


The above types of terrain are left behind on the square that the corresponding piece has just vacated. The terrain types have these effects on pieces:
Grass - None
Mud - Any sliding piece (Queen, Bishop, Rook) stops their slide at a patch of mud.
Water - Only the Rook and Knight can land on a patch of water. The Knight, however, cannot leap _over_ water.
Ice - Only the Queen and Bishop may land on ice.
Void - Only the King may land on the Void, but the Rook may slide past it.


The only exception to these rules is the King - if the King is on a normal unterrained square, it leaves behind Grass, otherwise it leaves whatever is already there.

I haven't played this one with other people that much, so please e-mail me if you find any bugs at all. :)

You should extract the downloaded zip file preserving path names.