Nº 12 János Mikitovics

Win – B) bP b7 to a4

Section A

János Mikitovics (Hungary)

Twin: A


Keywords: exchange of keys, oppositions, sacrifice, positional draws

1.c6! (a)
Thematic try 1.d7? (b) 1…Rg8+! (1…c3? 2.Ba4 Ke4 3.c6+-) 2.Kf1 Rf8+! (2…c3 3.Ba4 Rf8+ 4.Kg2 Rg8+ 5.Kh3 Rh8+ 6.Kg4 Rg8+ 7.Kf5+-) 3.Ke1 Ra8! 4.Kd1 Kd3 5.Kc1 Kc3 6.Kb1 Rb8!! 7.Ka2 Ra8+ 8.Kb1 Rb8 positional draw, or 9.c6 bxc6 10.dxc6 Rxb5+ 11.Kc1 Ra5!! (11…Rd5? 12.c7 Ra5 13.Kd1+-) 12.Kd1 Rd5+ 13.Kc1 Ra5 positional draw

1…c3 2.Ba4 c2 3.Bxc2 bxc6 4.dxc6+-

2.dxc6 Rg8+!
2…Rxb5 3.d7!+- (3.c7? Rg5+ 4.Kh3 Rh5+! 5.Kg4 Rc5 6.d7 Rxc7 7.d8Q Rg7+ 8.Kf5 c3 9.Qf6 Rc7 10.Qe5+ Kd2 11.Qxc7 c2–+)

3.Kh3? Kf3= (3…Kf4! 4.c7!+-)

3…Rf8+! 4.Ke1! Ra8! 5.Kd1!!
5.Ba4? Rxa4 6.Kd1 Kd3= (6…Ra2? 7.d7! Rd2+ 8.Kc1+-)

5…Kd3 6.Bxc4+!!
6.Kc1? Kc3 7.Kd1 Kd3 8.Bxc4+ loss of time; 6.Ke1? Ke3 7.Kd1 loss of time

6…Kxc4 7.c7!
7.d7? Kd3 8.Ke1 (8.Kc1 Kc3 9.Kb1 Rb8+=) 8…Ke3 9.Kd1 Kd3 positional draw

7…Kd3 8.Kc1 Kc3 9.Kb1!
9.Kd1? Kd3 10.Kc1 loss of time

9…Rc8 10.d7
10.Kc1? Rh8 /g8 11.Kd1 Kd3 12.Ke1 Ke3=

10…Rxc7 11.d8Q Rb7+ 12.Kc1+-

Twin B) bP b7 to a4

1.d7! (b)
1.c6? (a) 1…Rg8+ /Rxb5=

1…Rg8+ 2.Kf1 Rf8+ 3.Ke1!
3.Kg2? a3!! (3…Rg8+? 4.Kf1 main) 4.Bxc4 Rf2+!! (4…Kd4? 5.c6+-) 5.Kg3 Rf3+ 6.Kg4 Rf4+ 7.Kg5 Rxc4 8.d8Q Rxc5+ (8…a2? 9.Qa5+-) 9.Kf6 a2=

3…Rh8 4.Bxc4+- (4.Kd1? Kd3! 5.Kc1 a3! 6.Kb1 Kc3 7.Ka2 Kb4=)

4.Bxc4 Kd4 5.c6 Kxc4 6.c7 a2 7.c8Q+-