1.Qc6+
1.Qb3+? Kf6! =
1...Kf7 2.Nd6+
2.Qc4+? Kg7! 3.Qd4 Rhe8 4.Nd6 Kg8! 5.Nxe8 Rxe8 6.Qf6 f3+! =
2...Ke7
2...Kg7 3.Qc3 Kf6 4.Nc4 Rhe8 5.Kf3 g5 6.Nxe5 Rxe5 7,Kg4 +-
3.Ne4 f3+! 4.Kg3!!
4.Kf2? Rf5 5.Qc7+ ( 5,Nc5 Rd8! 6.Qe6+ Kf8 7.Ne4 Rdd5 8.Qxg6 Rf7
9.Qxh6+ Ke7 = ) 5...Kf8 ( 5...Ke6? 6.Nc5+! +- ) 6.Qd8+ ( 6.Nd6 Rf4! = )
6...Kg7 7.Qe7+ Rf7 8.Qe5+ Kg8 9.Nf6+ Kf8 zz 10.Nd7+ Kg8 11.Qe8+
Kg7 12.Qe5+ Kg8 13.Nf6+ Kf8 14.Qd4 Kg7! 15.Nh5+ Kg8 =
4...Rf5 5.Qd6+
5.Qc7+ Ke6 6.Nc5+ Kd5 7.Nb3 Rhf8! 8.Qd7+ Ke5 9.Qe7+ Kd5 10.Qc5+
Ke6 11.Nd4+ Kf7 12.Nxf5 gxf5 =
5...Kf7 6.Qd7+ Kg8 7.Qe8+(or Qe6+) Kg7 8.Qe7+ Rf7
8...Kg8 9.Nf6+ Rxf6 10.Qxf6 Rh7 11.Qd8+ Kg7 12.Kxf3 +-
9.Qe5+ Kg8 10.Nf6+ Kf8 11.Kf2! zz Kg7
11...g5 12.Qe8+ Kg7 13.Nh5+ +-
11...h5 12.Ne4! ( 12.Nd7+? Kg8 13.Qe6 Rh6! 14.Nf6+ Kg7 15.Ne8+ Kg8
16.Nd6 Rhh7 = ) 12...Kg8 13.Ng5 Rhh7 ( 13...Rf5 14.Qe8+ Kg7 15.Ne6+
Kf6 16.Qc6! +- ) 14.Qd5(or Qe6) Rhg7 15.Qb3(or Qc4, Qd5) ( 15.Qe6?
h4 zz 16.Qc4 ( 16...Ne4 Kh7 17.Nf6+ Rxf6 18.Qxf6 g5 = ) 16...h3
17.Qc8+ Rf8 18.Qe6+ Kh8 19.Qxh3+ Kg8 20.Qe6+ Kh8 = ) 15...h4
16.Qe6 zz h3 ( 16...Kf8 17.Qc8+ Ke7 18.Qc5+ Ke8 19.Qb5+ Ke7
( 19...Rd7 20.Ne6 Rgf7 21.Nc5 +- ) 20.Qe5+ ( faster than 20.Qb4+ Ke8
21.Qxh4 +- ) 20...Kf8 21.Ne6+ Kg8 22.Nxg7 Rxg7 23.Qe8+ Kh7 24.Kxf3
Rc7 25.Qf8 +- ) 16...h3 17.Ne4 Kh7 18.Qxh3+ Kg8 19.Qe6 Rh7
20.Nf6+ +-
12.Nh5+ Kh7
12...Kg8 13.Qe8+ Kh7 14.Qxf7#
13.Qg7+! Rxg7 14.Nf7#
