Quintuplets

Ralf Kraetschmer, Die Schwalbe 2001



White to play and mate in minimal number of moves:
a) Diagram;
b) g7 = White knight;
c) g7 = White bishop;
d) g7 = White rook;
e) g7 = White queen.

No one? 😳

Originally posted by David113
Ralf Kraetschmer, Die Schwalbe 2001

[fen]8/2K3P1/2p2Pp1/2P2pPp/2R2Pkn/2Pp1n1b/6p1/3B1NR1[/fen]

White to play and mate in minimal number of moves:
a) Diagram;
b) g7 = White knight;
c) g7 = White bishop;
d) g7 = White rook;
e) g7 = White queen.

Funny how the problem with the queen on g7 takes the moves to mate.

The solution given is correct.
The stronger white's piece on g7 - the longer the mate.