1. Qa1
1. Qc2? Qe1+ 2. Kf4 c6+ $1 3. Kf5+ Kh7 4. Rg7+ Kxg7 5. Qb2+

Kg8 6. Kg6 Qg3+ 7. Bg5 Be5 8. Qb7 Bc7 9. Qb2 Rd7 10. exd7 Qd6+ 11. Kxh5 Qxd712. Qf6 Qf7+ 13. Qg6+ Qxg6+ 14. Kxg6 Bb6 and Black keeps both his pawns -+
1. Qb2? Qe1+ 2. Kf4 Rf8+ 3. Ke5+ e3 4. Bxe3+ (4. Rxe3 Qa5+ 5. Kd4 Ba7+) 4... Kh7 5. Qc2+ Kh8 6. Rh3 c6+ 7. Ke4 Rf4+ 8. Kd3 Qf1+ 9. Kd2 Qg2+ 10. Kd3 Qxh3 -+
1. Qa3? c5 2. Kxe4+ Kh7 3. Qxc5 Qe1+ 4. Re3 Qh1+ 5. Rf3 Qh4+ 6. Kf4 Qe1+ 7. Qe3 Qb4+ 8. Kf3 Bxf4-+

1... Qe1+ 2. Kf4 Rf8+ 3. Ke5+ e3
3... Kh7 4. Rg7+ Kxg7 5. Bh6+
4. Bxe3+ Rf4! 5. Qb2!
5. Kxf4? Qxa1 6. e7 Qa4+
5. Qxe1? c6#

5. Qa8? Qa5+ (5... Qa1+) 6. Kxf4 Qxa8 7. e7 Qa4+ -+
5... Qc3+ 6. Kxf4 Qxb2 7. e7
7. Kf5+? Kh7
7... Qh8 8. Kf5+!
Logical try 8. Ke4+? Kh7 9. Rg7+ Kxg7 (9... Qxg7? 10. e8=Q Qg6+ 11. Qxg6+ Kxg6 12. Bf4! =) 10. Bd4+ Kf7 11. Bxh8 c6! and Black ends up with two extra pawns -+
8... Kh7 9. Rg7+! Kxg7

9... Qxg7 10. e8=Q=
10. Bd4+ Kf7 11. Bxh8 c5
Now we see why the white king is better on f5. 11... c6 12. Kg5 (or 12. e8=Q+ Kxe8 13. Kg5)=
12. Bf6
12. Kg5? Kxe7 13. Kxh5 Ke6 -+
12... Bd6

12... Bg3 eg 13. Bg5
13. Ke4! Bxe7 14. Bd4! cxd4
14... c4 15. Kd5 h4 16. Kxc4 h3 17. Bg1(17. Be5? Ke6 18. Bh2 Bd6-+) 17...Ke6 18. Kd3=
15. Kxd4 h4 16. Ke3!
16. Ke4? h3 17. Kf3 Bh4! -+
16... h3 17. Kf2 h2 18. Kg2 =