1.g6+	Kf6
2.Rf8	Ke5
3.f6!!
If 3.Rf7? Ra1=
3...	Rxf6
4.Rf7!	Ke6
If 4... Rf5+ 5.Kg4 Rf6 6.Kg5+-
5.Rxg7	Rf1
6.Ra7
And Black resigned
Bayer-Polasek (1986)