Solution:
1...f2 2.Qxe2#
1...Be1/Bc1 2.Rd4#
6 tries skipped1.Ke8?? (2.Rb4#)
1...Rxb6 2.Nxb6#
but 1...Rxa8+!
1.Kf6?? (2.Rb4#)
1...exd5 2.Bd3#
1...Rxb6 2.Nxb6#
but 1...e5!
1.Kd6?? (2.Bd3#)
but 1...Rxb6+!
1.Kd8?? (2.Rb4#)
1...Rxb6 2.Nxb6#
but 1...Rxa8+!
1.Bxf3?? (2.Qxe2#)
but 1...Rxb6!
1.Rb5?? (2.Bd3#)
but 1...exd5!
1.Kxe6! zz
1...Rxa5/Ra7/Rxa8 2.Rb4#
1...Rxb6+ 2.Nxb6#
1...Be1/Bc1 2.Rd4#
1...Be3 2.Bd3#
1...f2 2.Qxe2#
1.Kd7! (2.Rb4#)
1...Rxb6 2.Nxb6#