Solution
1. Qxd4 Nxd4 2. Nf6+ Kf8 3. Bh6#
1. Qxd4 captures the defender of the f6-square (the black bishop) and at the same time threatens Qxh8 as well as Nf6+, Kf8, Bh6#
1. Qxd4 Nxd4 2. Nf6+ Kf8 3. Bh6#
1. Qxd4 captures the defender of the f6-square (the black bishop) and at the same time threatens Qxh8 as well as Nf6+, Kf8, Bh6#