1.Se6 ! threat: 2.Sc5 #

1...R:e6 2.B:d5 + !

2...K:d5 3.Q:d4 #

1...B:e6 2.R:e5 + !

2...K:e5 3.Qf4 #

extra:

1...Rc7 2.c:d4

threat: 3.R:e5 #

2...f2 3.Qe2 #

2...Rh7 3.Sc5 #

2...e:d4 3.B:d5 # / Q:d4 #

1...f2 2.Qe2 #

Novotny with remote self-blocking