1  Banaszek, Marcin
1988  Wola Gulowska
3. Prize
 
a) diagram
1.Bf8! g6 2.Be7 g7 3.Bd7 g8Q#
b) changed colour of all units
1.Rh4! Bc4 2.g4 Bf4 3.Kh3 Bf1#


black self-blocks, miniature



h#3 a,b   3+3   id=96