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Pocket Mutation Chess. Take one of your pieces off the board, maybe change it, keep it in reserve, and drop it on the board later. (8x8, Cells: 64) (Recognized!)[All Comments] [Add Comment or Rating]

💡📝Michael Nelson wrote on Sat, Sep 18, 2004 03:48 PM UTC:

I have an idea for Pocket Mutation Demotion Chessgi. It will use the same
pieces and value classes as PM. 

The rules for using the pocket are expanded:

When you capture an enemy pawn, it is removed from the game. If you
capture any other enemy piece, it is demoted to the next lower value
class, mutated to a friendly piece of your choice in that class, and put
in your pocket. This is mandatory even if your pocket is not empty and
will cause the removal of any piece in your pocket from the game. 

Notice how you can't put a strong piece in the pocket and wait around for
a good drop--in effect you can only capture pawns as long a s that strong
piece is there.

Imagine having a Queen in your Pocket and the opponent checks with a
Knight and the only counter is to capture the Knight. At the cost of a
Knight, the enemy has changed your Queen into a pawn!