1.Rxf7!
Qe5+
If 1... Qxf7 2.Qxd8+ Qg8 3.Qf6+
2.f4
Qd6
3.Qb2+
Qd4
4.Rf8+
Bg8
5.Ng5!
1-0
There is no defence to Nf7#
Varing-Ferscht (1962)