(1) Kotov (training example)
1985

1.Nxe4!Ncxe42.Rxe4Nxe43.Rxe4Qxe4 [3...Qd7!?4.Rd4Qf75.Rf4Qd76.Bxg7+Qxg7+7.Nd4+- ]

4.Ng5!Qg6 [4...Qxh45.Nf7# ]

5.Qxh7+Qxh76.Nf7# 1-0