Nº 15 Marco Campioli

Publicado el 20/09/2018 a 242 × 242 en 7th International Internet Tournament UAPA

BTM Draw

Section B.2.

Marco Campioli (Italy)

3n4/7k/4PP2/3P1PPK/4P3/2R4p/pb4p1/8

1…h2!
1…Bxc3!? 2.g6+ Kg8/Kh8 3.e7 Bxf6 4.e8Q+ Kg7 5.Qd7+ Kf8 (5…Kg8 6.Qe8+=) 6.g7+ Kg8 (6…Bxg7? 7.Qxd8++-) 7.Qe8+ Kxg7 8.Qg6+ Kf8 (8…Kh8? 9.Qxf6+ Kg8 10.Qxd8++-) 9.Qxf6+ Nf7 10.Qd4 h2 (10…Kg8 11.Kg6 Nh8+ 12.Kh6 Nf7+ 13.Kg6=) 11.Qb4+ Kg8 (11…Kg7 12.Qb2+ Kh7 13.Qxg2 a1Q 14.Qxh2=) 12.Qb8+ Kh7 13.Qxh2 a1Q 14.Qxg2=
1…a1Q? 2.Rc7+ Kg8/Kh8 3.e7 Qd1+ 4.Kg6+-or 1…g1Q? 2.Rc7++-, see 1…a1Q?

2.Rc7+
2.g6+? Kg8 3.f7+ Kf8! 4.g7+ (4.e7+ Kxe7 5.d6+ Kf8!-+) 4…Kxg7 5.Rg3+ Kh7 6.f8N+ (6.f8Q h1Q-+) 6…Kh8 7.Ng6+ Kg7! 8.e7 g1Q-+

2…Kh8!
2…Kg8? 3.Rg7+ Kf8 (3…Kh8 4.e7 h1Q+ 5.Kg6+-) 4.e7+ Ke8 5.Rg8+-

3.Kg6 h1Q!
3…a1Q? 4.e7 Bxf6 5.e8Q# mate; 3…g1Q? 4. e7 Qxg5+!? (4…Bxf6 5.e8Q# mate) 5.Kxg5 Nf7+ 6.Kf4! Be5+ 7.Kd3!+-; 3…Bxf6? 4.e7! Bxe7 5.Rxe7 a1Q/g1Q/h1Q 6.Re8# mate

4.Re7!
4.Rd7? Bxf6 5.Kxf6 (5.gxf6 g1Q# mate) 5…a1Q+ 6.e5 Qa8 7.e7 Nb7 8.Rd8+ Qxd8!–+; 4.e7? Qh7# mate]

4…Qh5+!
4…Qh6+? 5.Kxh6+-; 4…a1Q?/g1Q? 5.Re8# mate

5.Kxh5 Bxf6!
5…a1Q? 6.Re8+ Kh7 7.g6# mate; 5…g1Q? 6.Re8+ Kh7 7.g6+ Qxg6+ 8.fxg6# mate

6.gxf6
6.Re8+? Kg7! 7.e5 Bxg5! 8.f6+ Bxf6 9.exf6+ Kxf6–+

6…a1Q!
6…g1Q!? 7.Re8+ Kh7 8.Re7+ Kg8 9.Re8+ Kh7 10.Re7+ Nf7!? 11.exf7!=

7.Re8+ Kh7 8.Re7+ Kg8! 9.Re8+!
9.Rg7+? Kh8! 10.Rxg2 Qh1+ 11.Kg4/Kg5/Kg6 Qxg2-+

9…Kh7 10.Re7+ Nf7!? 11.Rxf7+!
11.exf7? Qh1+ 12.Kg4/Kg5 g1Q–+

11…Kh8 12.Rf8+!
12.Rg7? Qh1+ 13.Kg6 g1Q–+

12…Kh7 13.Rf7+ Kg8! 14.Rg7+ Kh8!
14…Kf8? 15.e7+ Ke8 16.Rg8+ Kd7 17.e8Q+-

15.Rxg2
15.Rg3?/Rg4? Qh1+! 16.Kg6 Qh7+ 17.Kg5 Qg8+ 18.Kf4 QxR+!-+; 15.e7? Qh1+ 16.Kg6 g1Q+ 17.Kf7 Qa7! 18.Rg6!? Kh7! 19.Rg7+ Kh6! 20.Rg6+ Kh5 21.Kf8 Qxe4 22.e8Q Qc5+! 23.Kf7 (23.Qe7 Qcxe7+!-+) 23…Qcxd5+!–+

15…Qh1+ 16.Kg6 Qxg2+
16…Qh7+ 17.Kg5 Qg8+ 18.Kf4 Qxg2 19.e7!=

17.Kf7 Qxe4 18.d6!
18.e7? Qxd5-+

18…Qxf5 19.d7!= Positional draw

[19.e7? Qd7 20.Kf8 Qxd6 21.f7 Qc5! 22.Ke8 Qc8# mate; 19.Ke7? Kg8 20.d7 (20.f7+ Kg7 21.d7 Qc5+ 22.Ke8 Qf8# mate) 20…Qc5+! 21.Ke8 Qf8# mate] .

Large sized study. Refusals to capture undefended pieces. Various tries. Sacrifices. Zugzwang. Strong counter-play by Black. Fight to promote. Promotions to Queen. Play covers all the chessboard. Positional draw.