Nº8 János Mikitovics & Mario García

Win

Section A.1.

János Mikitovics & Mario García (Hungary. Argentina)

Twin A : wKh3,Nb8,c1,Ph4/bKa7,Ng6,Pe6

1.Nc6+!
1.h5? Nf4+! fork 2.Kg4 Nxh5= active sacrifice
1.Nd7? Nxh4 active sacrifice 2.Kxh4 e5!! active sacrifice 3.Nf6 e4! active sacrifice 4.Ng4 e3!= active sacrifice

1…Kb6 2.Nd4 Kc5 3.Nce2!! White is forbidden to accept passive sacrifice on e6!
3.Nxe6+? Kd6=
Thematic try 3.Nf3? Nxh4!! active sacrifice (3…Kc4? 4.Kg3! Nxh4 5.Nxh4!! e5 6.Nf5 e4 7.Ne3++-) 4.Nxh4 e5! 5.Nf5 e4 6.Kg3 e3=

3…Nxh4
3…Kc4 4.h5+-

4.Kxh4 Kc4 5.Kg3!! e5 6.Nf5!
6.Nc2? Kd3!= skewer(6…e4? 7.Ne3++- main line)

6…e4 7.Ne3+!
7.Kf2? e3+!= active sacrifice

7…Kd3 8.Kf2+-Troitsky
Keywords: passive and active sacrifices; fork; Troitsky line

Twin B : bNg6=>e5

wKh3,Nb8,c1,Ph4/bKa7,Ne5,Pe6

1.Nc6+!
Thematic try 1.Nd7? active sacrifice (11th WCCT) 1…Nxd7! (1…Ng6? 2.Nc5 Nxh4 3.Kxh4 e5 4.Ne4+- Troitsky line) 2.h5 Kb7 (2…e5? 3.h6! Nf6 4.Kh4! Kb6 5.Kg5 Nh7+ 6.Kg6 Nf8+ 7.Kf5+-) 3.h6 Nf8 4.Kg4 Kc7 (4…e5? 5.Kf5 e4 6.Kxe4+-) 5.Kg5 e5! 6.Kf6 e4! (6…Kd7? 7.Nd3 e4 8.Nc5++- fork) 7.Kf7 Nh7 8.Kg7 Ng5 9.Kg6 Ne6 10.Kf5 (10.h7 Nf8++- fork) 10…Nf8 11.Kxe4 Kd7 12.Kf5 Ke7=

1…Nxc6 2.h5!
2.Kg4? Ne5+! switchback 3.Kg5 (3.Kf4 Ng6++- fork) 3…Nf3+= fork
2.Nd3? Ne7! (2…e5? 3.Nf2!+-) 3.h5 Ng8! 4.Kh4 Kb7 /b6 5.Kg5 Kc7 /c6 6.Kg6 Kd6 7.Kg7 Ne7 8.Nf4 Nf5+ 9.Kf6 Kd7 10.Nxe6 Nh6 11.Nf4 Ng4+ 12.Kg5 Ne5 13.Ng6 Nf7+ 14.Kf6 Nh6 15.Ne5+ Ke8 16.Kg6 Ng8 17.Kg7 Ne7 18.h6 Nf5+ fork

2…Ne5 switchback 3.Kg3!
3.Kh4? Nf7=

3…Kb6
3…Nf7 4.Kf4! (4.Nd3? e5!=) 4…Kb6 5.Nd3+- main line]

4.Kf4 Nf7 5.Nd3 Kc7 6.Ne5! Umnov 6…Nh6 7.Kg5!
7.Ng4? Nf7! 8.Ne5+- loss of time

7…Nf5 8.Kf6!
8.Kg6? Kd6 9.Kf6 Kd5 10.Nf3 Ke4 11.Nh4 active sacrifice 11…Nh6! 12.Kg5 Nf7+= (12…Ng8? 13.Ng6! e5 (13…Kd5 14.Ne7++- active sacrifice) 14.Ne7!!+- active sacrifice)

8…Kd6
8…Kd8 9.Kf7!+- a) 9.Kxe6? Ng7+= fork; b) 9.Nc4? Ke8!= (9…Kd7? 10.Kf7+-)

9.Nc4+!
Thematic try 9.Ng4? Kd5! (9…Kc5? 10.Nh2!! Kd4 11.Nf1+- main line) 10.Nh2 Ke4 11.Kg5 Nd6! (11…Ke5? 12.Nf1 Kd6 13.Kf6! (13.Ng3? /Se3? active sacrifice 13…Ke7!=) 13…Kd7 14.Kf7+-) 12.Ng4 Kd4!! (12…Nf5? 13.Nf6+ Ke5 14.Ne8 Ke4 15.Ng7!!+- active sacrifice) 13.Kf6 Nf5! 14.Nf2 Ke3!= (14…Kd5? 15.Nh1!! Ke4 (15…Kd6 16.Ng3!!+- active sacrifice) 16.Ng3+!!+- active sacrifice / main line)

9…Kc5
9…Kd7 10.Kf7+- (10.Ne5+? Ke8=)

10.Nd2!
Thematic try 10.Ne5? Kd5! (10…Kd4? 11.Nc6+! Ke4 12.Kg5 Kd5 13.Ne7++- active sacrifice; 10…Kd6? 11.Nc4+! main line) 11.Ng6 Ke4! (11…Kd6? 12.Nh4!!+- active sacrifice) 12.Nh4! active sacrifice 12…Nh6! 13.Kg7 Ng4=

10…Kd4 11.Nf1!
Thematic try 11.Nb3+? Ke3 (11…Ke4? 12.Kg5 Kd5 13.Nd2 Ke5 14.Nf1 Kd6 15.Kf6 Kd7 16.Kf7 Kd6 17.Ne3!!+- active sacrifice) 12.Nc5 Kf4! 13.Nxe6+ Kg4 14.Ng7 Nh6! 15.Kg6 Ng8 16.Kf7 Nh6+ 17.Kf6 Nf5!!= active sacrifice
11.Kxe6? Ng7+!= fork(11…Nh6? 12.Kf6 Ke3 13.Kg5!! Nf7+ 14.Kg6 Kf4 15.Nc4! Nh8+! 16.Kf6!! (16.Kg7? Nf7 17.Kg6! Nh8+ 18.Kf6 loss of time) 16…Nf7! active sacrifice 17.Ne3!!+- active sacrifice)

11…Ke4 12.Ng3++- active sacrifice

Keywords: – the theme of the 11th WCCT; – Task = mutual active sacrifices; – forks; – switchback-Troitsky line.