1.Rh4!
[Thematic Try : 1.f8Q?
Rxb7+
2.Ka3
(2.Bb6
h1Q
3.Ka5
Qd5+
4.Ka6
Ne4!
5.Rf1+
Ka2!=
) 2...h1Q
3.Qc8
Rb2
4.Bd4
Ra2+
5.Kb4
Qd1!
6.Qb7
(---> 6.d7
Ne2=
) 6...Qxd4+!
(Not 6...Nf5?
7.Qe4+
Kc1
8.Be3+
Nxe3
9.Qxe3+
Kb1
10.Qe4+
Rc2
11.Kb5
Kc1
12.Qe3+
Kb1
13.Qf3+-
) 7.Rxd4
Rb2+=
8.Kc5
Rxb7
9.Rb4+
Rxb4
10.Kxb4
Nf5
11.d7
Nd4!=
] 1...Nf5
2.Rxh2
Nxd6
[main 2...Rxb7+
3.Bb6!
Rxf7
(3...Rxb6+
4.Kc5!
Rb5+
5.Kxb5
Nxd6+
.Kc5
Nxf7
7.Kd5+-
) 4.Kb3
Kc1
5.Kc3
Kb1
6.Rb2+
Kc1
(6...Ka1
e.g. 7.Rb4
Rh7
8.Bd4
Ka2
9.Rb2+
Ka3
10.Bc5+
Ka4
11.d7
Rxd7
12.Kc4
Nd6+
13.Bxd6
Rxd6
14.Ra2#
) 7.Re2
Kb1
(7...Kd1
8.Rd2+
Kc1
9.d7+-
) 8.Kb3
Kc1
9.Re1++-
] 3.Bb6!
[Thematic Try : 3.Kc3?
Nxf7
4.Rh1+
(4.Bd4
Nd6
5.Be5
Ne4+!=
) 4...Ka2
5.Bd4
(5.Kc2
Nd6
6.Bd4
(6.Rh4
Nb5
7.Bc5
Na3+=
) 6...Ka3
7.Rh4
Nc4
8.Kc3
Rxb7=
) 5...Nd6!
(Not 5...Rxb7?
6.Kc2
Rc7+
7.Bc3
Rxc3+
8.Kxc3
Nd6
9.Rh5+-
) 6.Be5
(6.Kb4
Rxb7+
7.Ka4
Rb2!
8.Bxb2
Kxb2=
) 6...Rxb7
7.Rh2+
Ka3!
(Not 7...Kb1?
8.Bxd6
Rb5
9.Re2
Rb6
10.Bc5
Rc6
11.Rb2+
Ka1
12.Rb5+-
) 8.Bxd6+
Ka4
9.Kc4
Rb4+
10.Bxb4=
] 3...Nxf7
4.Kb3
Kc1
5.Kc3
Kd1
6.Rd2+
Ke1
7.Rb2
[Try : 7.Rd7?
Nd6
8.Rxd6
Rxb7
9.Kd3
Rf7!=
] 7...Rxb7
8.Bf2+
Kf1
9.Rxb7
Nd6
10.Re7!
Kxf2
11.Re6+-