Nº16 Richard Becker & Mario G. García (USA-Argentina)

Win
Richard Becker & Mario G. García (USA-Argentina)
2hm, Olimpiya Dunyasi 2014

wKe4,Ra4,Pb4,c6/bKe7,Rb8,Pg4,g5

1.Kd5 Rb5+ 2.Kc4 Rf5 3.Ra1!
3.Ra8? Kd6 4.b5 Rf1! 5.Rg8 Kc7 6.Rg7+ (6.Kb4 Rb1+ 7.Ka5 Ra1+ 8.Kb4 Rb1+ 9.Kc5 Rc1+ =) 6…Kb6 7.Rb7+ Ka5 8.c7 Rc1+ 9.Kd5 g3 = positional draw
3.Ra7+? Kd6 4.b5 Rf4+! 5.Kb3 (5.Kc3 Rf1 6.Rd7+ Kc5 7.c7 Kb6 =) 5…Kc5 6.Rb7 Rf8 7.c7 Rc8 8.b6 g3 9.Rb8 g2 10.Rxc8 g1Q = positional draw

3…Kd6 4.b5 Rf4+
Main 4…g3 5.Rd1+ Kc7 6.Rd7+ Kb6 7.Rb7+ Ka5 8.c7 Rf1
8…Rf4+ 9.Kc5 g2 (9…Rf5+ 10.Kd6! (10.Kc6? g2 11.c8Q Rc5+ 12.Kxc5 g1Q+ =) 10…Rf8 11.Rb8 g2 12.Rxf8 +-) 10.Ra7# Mate 1
9.Ra7+ Kb6 10.c8N#! Mate 2

5.Kb3! g3
5…Rf7 6.Kb4! g3 7.Rg1 (Ra3) +-

6.Rd1+ Kc7 7.Rd7+ Kb6 8.Rb7+ Ka5 9.c7 Rb4+
9…Rf3+ 10.Kc4 Rf1 (10…Rf4+ 11.Kc5 etc.) 11.Ra7+ etc.]

10.Kc3 Rb1 11.Ra7+!
11.Kd2? Rc1! (11…g2? 12.Ra7+ Kb4 13.c8Q +-) 12.Kxc1 g2 13.c8Q g1Q+ 14.Kc2 Qg2+ 15.Kb3 Qd5+ 16.Kb2 Qg2+ 17.Kb3 Qd5+ 18.Qc4 Qxb7 = positional draw or perpetual jaques

11…Kb6
11…Kb5 12. Rb7+- “skewer”

12.c8N+! Kc5 13.Rg7 g2
13…Kd5 14.Kc2! (14.Rxg5+? Ke4 15.Na7 Kf3 =) 14…Rxb5 15.Rxg5 Kc6/c4 16. Na7/d6 FORK+-
13…Rd1 14.b6! g2 15.Rc7 +-

14.Rxg5# Mate 3 (IDEAL)

In the real game: a) Resource of the promotion of minor piece; b) forks; c) “skewer”; d) mates: Culmination with mate ideal in the center of the board
In the game apparent : a) Positional draw and b) perpetual jaques