1.Ba5!
[Thematic try 1.d6?
Rc2+
2.Bc7
(2.Kd7
Kb7
3.Ke6
Rxd2
4.d7
Kc6
-+) 2...Nxd2
zz 3.d7
Nc4
zz 4.d8Q
(4.Kd8
Kb7
-+) 4...Nb6#
] 1...Rc2+
[1...Nxd2
2.d6
Nc4
3.d7
Rb8+
4.Kc7
Rb7+
5.Kc8
Nd6+
6.Kd8
Nf7+
7.Ke8
=; 1...Ra2
2.d6
Rxa5
3.d7
Rc5+
4.Kd8
Kb7
5.Ke7
Re5+
6.Kd6
=]
2.Bc7
zz 2...Nxd2
3.d6
zz 3...Nc4
[3...Ne4
4.d7
Nd6+
5.Kd8
Nb7+
6.Kc8
=] 4.d7
zz 4...Nb6+
[4...Rc3
5.Kd8
Kb7
6.Bf4
=; 4...Rc1
5.Kd8
Kb7
6.Bg3
=] 5.Kd8
Kb7
6.Bxb6
Kxb6
7.Ke7
(Ke8) 7...Re2+
8.Kd8
Kc6
[8...Kb7
stalemate] 9.Kc8
Ra2
10.d8N+
=.