[Retros] The Problemist July 2010

[Joost de Heer]

Forgot to explain the fairy condition 'Shrink chess'.

Shrink chess: When a file or row becomes empty as a result of the move, this 
file or row is removed from the board.

E.g. 1. Sa3 a6 2. Sb5 [Remove 3rd row, so black king is now on e7] a4 [Remove 
5th row, so black king is now on e6].

A remark: Although it's not explicitly told in the definition, I assume (at 
least that's how I always played the game during my college years) that the 
pieces above or to the right of the row/file to be removed are moved 
downwards/left.