Solution:
1...Rd2[a] 2.Bd4#[A]
1...Rxd3[b] 2.Qc6#[B]
1...Bc2[c] 2.Nxb5#[C]
1...Bxd3[d] 2.Qf6#[D]
4 tries skipped1.g8Q?? (2.Q8g7#/Qh8#)
1...Rxd3[b] 2.Qc6#[B]
1...Rh1 2.Q8g7#
but 1...Rf1!
1.Qg4?? (2.Qd4#)
1...Kxd3 2.Rb3#
but 1...Rxd3[b]!
1.Qb6?? (2.Qd4#)
1...Rxd3[b] 2.Qc6#[B]/Qc5#
but 1...Kxd3!
1.Qe4?? (2.Qd4#)
but 1...Rxd3[b]!
1.Qg2! zz
1...Rd2[a]/Rc1/Re1/Rf1/Rg1/Rh1 2.Qxd2#[E]
1...Rxd3[b] 2.Nxb5#[C]
1...Bc2[c] 2.Qxc2#[F]
1...Bxd3[d] 2.Bd4#[A]
1...Kxd3 2.Rb3#