Peter S. Krug & Mario G. García

Win

Section A.

Peter S. Krug & Mario G. García (Austria-Argentina)

2º.Prize 19th Torneo Internacional UAPA 2022

wKe1,Nf2,g6,Ba8,Re2/bKg1,Rh5,Pc7,d5,g3,h2

White , after successive attempts to sacrifice black Rook avoid the stalemate and achieve victory

1.Nh1!
1.Bxd5? h1Q 2.Bxh1 (2.Nxh1 Rxd5 3.Nxg3 Rg5!=) 2…gxf2+! (2…Rh2? 3.Ne4 Rxe2+ 4.Kxe2 Kxh1 5.Nxg3++-) 3.Rxf2 Kxh1 4.Nf4 Ra5=
1.Nf4? gxf2+ 2.Rxf2 Re5+ 3.Ne2+ Rxe2+ 4.Kxe2 h1Q=

1…Kxh1
1…g2 2.Rxg2+ Kxg2 3.Nf4+ Kg1 (3…Kxh1 4.Kf1 /f2 4…Rf5 5.Bxd5+ Rxd5 6.Nxd5+-) 4.Nxh5+-

2.Nf4!
2.Nh4? c6 /g2=

2…Rf5 3.Nxd5 c6! playing for stalemate
3…Rf8 4.Bc6! Rf1+ (4…g2 5.Ne3+-) 5.Kd2+- as main line
3…g2 4.Ne3! (4.Nc3? c6! 5.Bxc6 Rf6 /c5=) 4…c6 5.Bxc6 Rf6 6.Bd5 Rd6 7.Bxg2++-

4.Bxc6
4.Ne3? Rf2 5.Rxf2 gxf2+ 6.Kxf2= stalemate

4…Rf1+!? sacrifice
4…g2 5.Ne3 Rf6 6.Bd5 Rd6 7.Bxg2+ Kg1 8.Rf2 h1Q 9.Rf1++-

5.Kd2!
5.Kxf1? g2+ 6.Rxg2=

5…Kg1 6.Rg2+!!
6.Ne3? Rf2! (6…h1Q? 7.Bxh1 Kxh1 8.Nxf1 g2 9.Ng3+ Kh2 10.Ke3!+-) 7.Rxf2 gxf2=

6…Kh1!
Main 6…Kxg2 7.Nf4+ Kf2 8.Nh3# ideal mate

7.Rxg3!
7.Nf4? Rd1+ 8.Ke3 Rd3+ 9.Nxd3= stalemate

7…Rd1+!? sacrifice 8.Ke2!!
Thematic try: 8.Ke3? Rd3+ sacrifice 9.Kf2 Rf3+ sacrifice 10.Kxf3= stalemate(10.Ke1 Rxg3 11.Nc3+ Rg2 12.Ne2÷ stalemate)
or 8.Kc2? Rc1+ 9.Kxc1= stalemate
or 8.Kxd1?= stalemate

8…Rd2+!? sacrifice
8…Re1+ sacrifice 9.Kd3! Re6 10.Bb7/a8+-

9.Kf3!
9.Ke3? Rd3+ sacrifice 10.Kf2 Rf3+ sacrifice 11.Kxf3= stalemate Patt(11.Ke1 Rxg3 12.Nc3+ Rg2 13.Ne2 = stalemate

9…Rc2
9…Rd3+ 10.Ne3+-
9…Rxd5 10.Rg6+-
9…Rf2+ 10.Kg4+-

10.Rg6+-
Try: 10.Bb7? Rc7 11.Ba8 Rc8=