Solution:
1...cxd5[a]/Nxd5[b] 2.Nc6#
1...Kxd5 2.Bxf4#
2 tries skipped1.Bxf4+??
1...Kxf4 2.Rf5#
but 1...Kxf6!
1.Qe3+??
1...Kxd5 2.Bxf4#
1...Re4 2.Qxe4#
but 1...Nxe3!
1.Qd7? (2.Nxf7#[A]/Nc4#[B])
1...Nxd5[b]/cxd5[a] 2.Nxc6#[C]
1...Kxd5 2.Bxf4#
1...Ne3/Nb2/Rxd4/e1Q/e1R/e1B/e1N 2.Nxf7#[A]
1...Rxf6 2.Nc4#[B]
but 1...Nxc3!
1.Qd3! (2.Nxc6#[C])
1...cxd5[a] 2.Nxf7#[A]
1...Nxd5[b] 2.Nc4#[B]
1...Kxd5 2.Bxf4#
1...Rxd4 2.Qxd4#
