Solution:
1...Nf6/Ng7 2.Nxd6#
1...Nb5 2.Ra4#
1...Be3/Bb2/Ba3 2.Nxe3#
3 tries skipped1.Kc2?? (2.Qc3#)
1...Nb5 2.Ra4#
1...Bb2 2.Ne3#
but 1...Bd2!
1.N5xd4?? (2.Ra4#)
1...Bd2 2.Nf5#
1...cxd4 2.Rxd4#
but 1...Ba3!
1.Bxd4?? (2.Qc3#)
1...Nb5 2.Ra4#
1...Bd2 2.Be5#
1...Bb2 2.Ne3#
1...cxd4 2.Rxd4#
but 1...Qh1!
1.N3xd4! (2.Ra4#)
1...Bd2 2.Nf3#
1...Ba3 2.Ne3#
1...cxd4 2.Rxd4#