Nº15 Antonio Misericordia & Daniele Gatti

Win

Antonio Misericordia & Daniele Gatti (Italy)

wKc3,Nd7,h7,Be4,Pg6,h6/bKg8,Qh8,Pe6,f7,g7

1. Sdf6+!
1. Shf6+? gxf6! 2. g7 Qxh6! -+

1. … gxf6 2. g7 Qxh7
Secondary variation 2. … Qxg7 3. hxg7 f5 4. Sf6+! Kxg7 5. Se8+ Kf8 6. Bc6! [+-] [alternatively 5. Sh5+ Kh6 7. Bf3! [+-]]) (2. f5? 3. Sf6#! [+-] [3. gxh8=Q+? Kxh8 4. Sf6 fxe4 5. Kd4 e5+ 6. Ke3 (= stalemate); 4. Bxf5 exf5 5. Sf6 f4 6. Kd3 f3 7. Ke3 f2 8. Kxf2 (= stalemate)]

3. Bxh7+ Kxh7 4. Kd4! Kg8 5. Ke4!
Thematic try: 5. Kc5? f5! And Black obtains draw, threatening to push his pawn to promotion (=)

5… Kh7 6. Kf4 Kg8 7. Kg4 Kh7 8. Kh4 Kg8 9. Kh5! Kh7
Distant triangulation. This is necessary to switch back on the same position, but with inverted side to move. Indeed, Black can never play the defense … f5 , because white King could break through the pawns (5. … f5+? Ke5! [+-]; 8. … f5? 9. Kg5! f6+ 10. Kxf6! [+-]; 9. … f5? 10. Kg5! Kh7 11. Kf6! +-

10. Kg4 Kg8 11. Kf4 Kh7 12. Ke4 Kg8 13. Kd4 Kh7 14. Kc5! f5
Thematic move: now it works! With black King in h7, and not in g8, White can break Black’s fortress and win with the following sequence:

15. Kd6 f4 16. Ke7 Kg8 17. Kf6 f3 18. h7+ Kxh7 19. Kxf7 f2 20. g8=Q+-