Solution:
1...Nxc5 2.Nxc5#[A]
1...Qb1/Qg2/Qc1/Qc3/Qa1/Qa3 2.Bg2#[B]
1...Nc3/Nc7/Nd6/Na3/Na7 2.Nd6#[C]
1...Bf2/Bg1/Bf4/Bd2/Bc1 2.Bxd3#[D]
4 tries skipped1.Qc8?? (2.Qf5#)
1...Nd6 2.Nxd6#[C]
but 1...Qf2!
1.Qxb5?? (2.Bxd3#[D]/Qxd3#/Nd6#[C])
1...Nc1/Nc5 2.Nc5#[A]/Nd6#[C]
1...Qb1/Qc3 2.Bg2#[B]/Nd6#[C]
1...Qc2/Qd2/Qe2/Rd2/Rd1/Rc3 2.Nd6#[C]
1...Qa3 2.Qxd3#/Bg2#[B]/Bxd3#[D]
but 1...Bxg5!
1.Qf8?? (2.Qf5#/Qf3#)
1...Nd2 2.Qf5#/Nc5#[A]
1...Nd6 2.Qf3#/Nxd6#[C]
1...Qe2 2.Qf5#
1...Qg2 2.Qf5#/Bxg2#[B]
1...Bf2/Bf4/Bxg5/Bd2/Bc1 2.Qf5#/Bxd3#[D]
1...Bg1 2.Rh4#/Qf5#/Bxd3#[D]
but 1...Qf2!
1.Nb4?? (2.Bxd3#[D]/Qxd5#)
1...Nc3/Nc7 2.Nd6#[C]/Bxd3#[D]
1...Nc1/Qc2/Qd2/Qe2/Rd2/Rd1/Rc3 2.Qxd5#
1...Nxc5 2.Nxc5#[A]
1...Qb1/Qc3 2.Bg2#[B]/Qxd5#
but 1...Bxg5!
1.Qxd4+!
1...Kxd4 2.Ra4#
1...exd4 2.Re6#
1...Qxd4 2.Bg2#[B]
1...N3xd4 2.Nc5#[A]
1...N5xd4 2.Nd6#[C]
1...Rxd4 2.Rxe3#
1...Bxd4 2.Bxd3#[D]
