1. Ne6+ Ke7
1...Kc8 2. Ra1!
2. Bxd3 Rh5+
2... Bxd3 3. Nxg5+
3. Kg3 Bxd3
3...c1=Q 4. Rxc1 Bxd3 5. Nf4! +-
4. Nf4+
4. Nc5+? Kf6 5. Nxd3 Rg5 6. Kf3 Rxf5 7. Ke2 Rh5=
4. Ng7+? Be2/Be4=
4... Be4 

4... Kf6 5. Nxh5+
5. Rxe4+
5. Nxh5? d3 6. Rxe4+ Kf7
5... Kf6 
5... Kf7 6. Re1 Rxf5 7. Rc1 Rc5 8. Kf3
6. Nxh5+ Kxf5
6... Kg5 7. Re1 d3 8. Ng7 d2 (8... Kh6 9. Ne8 (9. Ne6? d2 10. Re4

Kh7) d2 10. Re6+ Kh7 11. Rg6 d1=Q 12. Nf6+ Kh8 13. Rg8#) 9. Re6 d1=Q 10.

h4# (10. Rg6#)
6... Kf7 7. Re1! d3 8. f6 d2 9. Re7+ Kg6 (9... Kf8 10. Ng7 (10. Nf4))10. f7 d1=Q 11. f8=Q Qg1+ 12. Kh3
7. Re1! 
A foreplan forcing Black's pawn closer to promotion.  7. Re6? Kxe6
7... d3 8. Re6! c1=Q
8... Kxe6 9. Nf4+ Kf5 10. Nxd3 Ke4 11. Nc1 +- eg Kf5 12. h4 Kg6 13. Kg4 Kg7 14. Kg5 Kh7 15. h5 Kg7 16. h6+ Kh7 17. Nd3 Kh8 18. Kg6 Kg8 19. h7+ Kh8 20. Ne5 c1=Q 21. Nf7# 

9.Ng7+ Kg5 10. h4# 1-0
The study was used for solving at the ECSC, Riga 2017.