1.Be4+!
[1.Nb1?
Nxd3
(1...c2?
2.Bxc2
Bxc2+
3.Kxh5
Bxb1
4.e6
Be4
5.e7
Bc6
6.Kg6
Nf3
7.Kf7=
) 2.Nxc3
Bg4-+
; 1.Ne4?
Nxd3
2.Nxc3
Bg4
3.Nc4
Nf4+
4.Kf6
h4-+
] 1...Kg3
[1...Kf2
2.Nb1!
(2.Ndc4?
Nxc4
3.Nxc4
h4
4.e6
c2
5.Nb2
c1Q
6.Nd3+
Ke3
7.Nxc1
Kxe4
8.e7
Ba4-+
) 2...c2
3.Bxc2
Bxc2+
4.Kxh5
Bxb1
5.e6!
Ba2
6.e7=
Bf7+
7.Kh6
Ng4+
8.Kg7
Bh5
9.Nd5
Nc4
10.Kf8
Nd6
11.e8Q
Nxe8
12.Nf4=
] 2.Nf1+!
[2.e6?!
try 2...cxd2
3.e7
h4
4.e8Q
Bh5+!
5.Kxh5
d1Q+
6.Kg6
Qd6+
7.Kg7
Ng4
8.Nd5
h3-+
; 2.Nb1?!
try 2...c2
3.Bxc2
Bxc2+
4.Kxh5
Bxb1
5.e6
Ng4!
6.Kg5
Nd3!
7.e7
Nde5
8.e8Q
Nf3+
9.Kh5
Nf6+-+
] 2...Nxf1
3.e6
c2
[3...Nc4
4.Nxc4
Ba4
(4...h4
5.e7=
) 5.Kxh5!
(5.e7?
Kf4
6.Bd3
Ng3
7.Nb6
Be8+
8.Kg7
Ke3
9.Bc2
Kd4
10.Kf8
Bc6
11.Kf7
h4
12.Ke6
h3-+
) 5...Nd2
6.Nd6
Kf4
7.Bd3=
(7.Bg6
; 7.Bc2?
Bxc2
8.Nb5
Bd1+
9.Kh6
c2-+
(9...Ne4
) ) ] 4.Bxc2
Bxc2+
5.Kxh5
Kf3
[5...Ne3
6.e7
Nf5
7.e8N!=
; 5...Nd2
6.e7
Ne4
7.e8N!=
; 5...Kf4
6.Nd5+
Kf3
7.Nc7!
(7.Kg5?
Ba4
8.e7
Nc4-+
) 7...Ng3+
(7...Nc4
8.e7
Ng3+
9.Kg5=
) 8.Kg5
Ne4+
9.Kh6!
Ba4
10.e7
Nd6
11.Kg7
Nd3
12.Kf8=
] 6.e7
[6.Kg5
] 6...Ng3+
7.Kg5
Ne4+
8.Kf5
Nd3
[8...Bd3
9.Ke6=
; 8...Nd6+
9.Ke6
Ne8
10.Kf7!
] 9.e8N!= .