Study 89

Árpád Rusz
Magyar Sakkvilág
2015
1st Prize

White wins

1.Qf6+! Before we take the pawn, the queen must be relocated to block the g-file. 1.cxd4? g2+! fork with pawn sacrifice 2.Kxg2 Rg8+ 3.Kh1 Qg3= 1...Kg8 2.Qg6+ Kf8

Thematic try: 3.exd4? Rg8 4.dxc5! queen sacrifice 4...Rxg6? 5.fxg6+ Ke8 6.Rf8+! rook sacrifice 6...Kxf8 7.cxb6+ Kg8 8.bxc7 Rxc7

position A1 (WCCT-10)

9.h7+ Kg7 10.Bf8+! bishop sacrifice 10...Kh8 11.Bd6 Rg7 12.Be5 e3 13.Bxg7+! +- bishop sacrifice (13.Kg2? h1Q+ 14.Kxh1 g2+ 15.Kh2 g1Q+ 16.Kxg1 stalemate)

Another defence also fails: 4...g2+? 5.Qxg2 bxc5 6.Qf2 e3! 7.Qxe3 Qc6+ 8.Rf3 Qd6 9.Rf4 Rc7 (9...Qd5+ 10.Re4+-) 10.Qd4!+-; b) but there is one which works: 4...b5! 5.c6+ b4= (6.cxb4? g2+! 7.Kxg2 Qf7! 8.b5+ Ke8–+)

So let's go back to the main line:

Main line: 3.cxd4! Rg8 4.dxc5! queen sacrifice It doesn't make sense to escape with the queen: 4.Qf6+? Qf7 5.Qd8+ Qe8= 4...Rxg6 4...g2+ 5.Qxg2! (5.Kxg2? Qf7! 6.cxb6+ Re7! (6...Ke8? 7.bxa7 Rxg6+ 8.fxg6 Qxf1+! queen sacrifice 9.Kxf1 h1Q+ 10.Kf2 Qh4+ 11.Kg2 Qg5+ 12.Kf1 Qf6+ 13.Ke1 Qa1+

14.Bc1!! bishop sacrifice - unguarded guard 14...Qxc1+ (14...Qc3+ 15.Kd1+-) 15.Kf2 Qc6 16.a8Q+! Qxa8 17.h7 Ke7 18.g7+-) 7.Qxg8+ Kxg8!= (7...Qxg8+? 8.Kh1! Kf7 9.Bxe7 Qg4 10.Re1!+-) ) 5...Rxg2 (5...bxc5 6.Qxe4+-) 6.cxb6+ Kf7 7.bxc7 Rg1+ 8.Kxh2! (8.Rxg1? hxg1Q+ 9.Kxg1 Rxc7 10.Bb2 Kg8=) 8...Rxf1 9.c8Q+-; 4...b5 5.Kg2! b4 6.Bb2! (6.Qf6+? Qf7 7.Qd6+ Qe7 8.h7 Qxd6 9.hxg8Q+ Kxg8 10.cxd6 bxa3=) 6...Rxg6 7.fxg6+ Kg8 8.h7++-

two white batteries

5.fxg6+ 5.cxb6+? Ke8 6.bxc7 g2+ fork –+ 5...Ke8 6.Rf8+! With the help of this rook sacrifice white manages to fire both batteries. 6...Kxf8 7.cxb6+ fork 7...Kg8 7...Qe7 8.bxa7 Qxa3 9.a8Q++-

paradoxical capture

8.bxa7!! Thematic try: 8.bxc7? Rxc7

position B1 (WCCT-10)

9.Bb2 Rg7! rook sacrifice 10.h7+ (10.hxg7 g2+ 11.Kxg2 h1Q+ 12.Kxh1 stalemate; 10.Bxg7 g2+ 11.Kxg2 h1Q+ 12.Kxh1 stalemate) 10...Kh8

position B2 (WCCT-10)

11.Bd4 g2+ 12.Kxg2 h1Q+ 13.Kxh1 stalemate 8...Qxa7 9.Bb2 Qg7! queen sacrifice 10.h7+! 10.Bxg7? g2+ 11.Kxg2 h1Q+ 12.Kxh1 stalemate; 10.hxg7? g2+ 11.Kxg2 h1Q+ 12.Kxh1 stalemate 10...Kh8

position A2 (WCCT-10)

11.Bd4! 11.Bxg7+? Kxg7 12.Kg2 Kh8 13.a3 Kg7 14.Kh1 Kh8 positional draw 11...Qxd4 12.exd4 +-

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Related studies: Study 89a Study 89b Study 89c