1...	Bxd4+
2.cxd4	Rxg2+
3.Kh1	Rxh2+!
Not 3... Qh4 4.Bxf4 Qxf4 5.Rxf3
4.Kxh2	Qh4+
5.Kg1	Qg3+
6.Kh1	Qg2#
Mayet-Hirschfeld (1861)