Tactical Exercise # 4

(1) Tactical Exercise # 4 1.Qg8+ Kxg8 [ 1...Rxg8 2.Nf7# ] 2.Ne7+ Kf8 [ 2...Kh8 3.Nf7# ] 3.N5g6+ [ 3.N7g6+ hxg6 4.Nxg6# ] 3...hxg6 4.Nxg6# 1-0