Solution

Congrats to the winner of this round, Hive account@iceblue! :)

Here now the full solution with diagram:

1. Bd5+ Kh8 (If 1. ... Kf8, then Nxh7 checkmate.)
2. Nf7+ Kg8
3. Ne5+

a)

3. ... Kf8
4. Nxd7+ Qxd7
5. Rxf6+ gxf6
6. Qxd7 and white wins.

b)

In the game followed:
3. ... Kh8
4. Ng6+! hxg6
5. Qh5+! and black resigned because of:
5. ... gxh5
6. Rxh5# (checkmate)

End position: