Nº18 Mario G. García

Win

Section A.

Mario G. García (Argentina)

wKe3,Qg3,Na5,d5,Bf6,Pc6/bKg1,Bh1,Ra4,h5,Pa2,g2,g4

1.Nb3!
1.c7? Ra3+!=

1…Rh3
1…Rf5 2.c7 Rf3+ 3.Qxf3 gxf3 4.c8Q+-
1…a1Q 2.Bxa1+- as line A )

2.Qxh3 gxh3 From here, a configuration of three white pieces against the Rook and a defensive bishop … with pawns for each side, close to promoting

3.c7! With the following lines :

A) 3…a1Q 4.Bxa1 Ra8 5.Nd2!
try : 5.Be5? Kf1! (5…Re8? 6.Kf3 Rf8+ 7.Ke2 Rf2+ 8.Kd3 Rf3+ 9.Kc2 Rf2+ 10.Nd2+-) 6.Nd2+ Ke1 7.Nf3+ Kf1 8.Nh2+ Ke1 9.Bg3+ Kd1 10.Nc3+ Kc2=

5…Re8+ 6.Ne7!
6.Kd3? Kf2 7.Bd4+ Kg3 8.Nf6 g1Q=

6…Rxe7+ 7.Kf4! Rxc7 8.Bd4+ Kh2 9.Nf3# mate

B) 3…Rc4 4.Nd2 Rxc7
4…a1Q 5.Bxa1 Rxc7 6.Bd4!+-

5.Nc3!
try : 5.Nxc7 a1Q 6.Bxa1 h2! 7.Nf3+ Kf1 8.Nxh2+ Kg1! 9.Nf3+ Kf1 10.Nd2+ Ke1 11.Nf3+ Kf1=

5…Rxc3+! playing for stalemate
5…Re7+ 6.Bxe7 Kh2 e.g. 7.Bd6+ Kg1 8.Ne2#

6.Bxc3 a1Q
6…h2 7.Ke2 a1Q 8.Nf3#

7.Nf3+!
7.Bxa1? h2 8.Kf3= stalemate

7…Kf1 8.Nh2+ Kg1 9.Bxa1 Kxh2 10.Be5+ Kg1 11.Ke2 h2 12.Bd4# mate;

C) 3…Ra8 4.Ke2!
try : 4.Nd2? Re8+ 5.Ne7 Rxe7+ 6.Kf4 Rf7! (6…Re4+? 7.Nxe4 Kh2 8.Kf5 g1Q 9.Be5+ Kg2 10.c8Q a1Q 11.Bxa1 Qxa1 12.Qc2+ Kg1 13.Qf2#) 7.c8Q Rxf6+ 8.Kg3 Rg6+ 9.Kf4 Rf6+=

4…a1Q 5.Nxa1!
5.Bxa1? Re8+ 6.Ne3 Kh2! 7.c8Q Rxe3+! 8.Kxe3 g1Q+=

5…Re8+
5…Kh2 6.Be5++-

6.Ne7+- e.g. 6…Rxe7+ 7.Bxe7 h2 8.Bc5# mate