1.e7

[1.Kg7? Ra6! 2.e7 Re6–+]

1...Ra8+ 2.Kg7

[2.Kf7? g5–+]

2...g5

[2...h5!? 3.Kxg6 h4 4.Kf7 Kc3 5.e8Q Rxe8 6.Kxe8 Kd4

7.Kd7! Ke5 8.Kc6! Kf4 9.Kd5 Kg3 10.Ke4 Kxh3 11.Kf3=]

3.Kxh6 Rg8!

4.Kh5!! the point

[4.Kh7? Re8! 5.Kg6 Rxe7 6.Kxg5 Rg7+! 7.Kf5 Rh7–+]

4...Kc3

[4...g4 5.hxg4 Kc3 6.Kh6! Kd4 7.Kh7 Re8 8.Kg6/Kg7 Rxe7 9.Kf6 Ra7 10.g5 Ke4

11.g6 Ra6+ 12.Kf7 Kf5 13.g7 Ra7+ 14.Kf8 (or 14.Kg8 Kg6 15.Kh8 Rxg7 stalemate)

14...Kf6 15.g8N+!=]

5.Kg4 Kd4 6.Kf5 Ke3

[6...Kd5 7.Kf6 Kd6 8.Kf7 Rh8 9.e8Q Rxe8 10.Kxe8=]

7.Kf6/Ke6 Kf4 8.Kf7 Ra8

9.Kf6/Kg6 Ra6+ 10.Kf7 Ra7

11.Kf6 Ra8 12.Kg6! Rb8

[12...Rg8+ 13.Kf7=;

12...Ke5 13.Kf7 Kf5 14.e8Q Rxe8 15.Kxe8=]

13.Kf6 Rc8 14.Kg6 Re8

15.Kf7 Rxe7+

16.Kxe7 Kg3 17.Kf6=