1.Sd7 ? threat: 2.Sf5 # / S:f7 #

but 1...Rh1 !

1.Sa6 ? threat: 2.Bc5 #

but 1...R:a5 !

1.f4 ! threat: 2.Re6 +

2...f:e6 (B:e6) 3.Sc5-e4 #

1...Ra4 2.Sd7 ! threat: 3.Sf5 # / S:f7 #

2...R:d7 3.Sf5 #

2...B:d7 3.S:f7 #

1...Re1 2.Sa6 ! threat: 3.Bc5 #

2...R:a6 3.S:f7 #

2...B:a6 3.Sf5 #

Novotny

Anti-Novotny (a piece is sacrificed at an intersection of Bishop and Rook, but not to interfere them, but to distract from guarding)