Nº 13 Richard Becker ( USA)

Win

Richard Becker ( USA)

wKg4,Nc5,Rg2,Pb2,b3,d4/bKe1,Pa2,b6,d2,d5,d6

1.Nd3+
1.Rg1+? Kf2! –+(Not 1…Ke2? 2.Na4! +-)

1…Kf1 2.Rf2+!
1st thematic try 2.Rxd2? a1Q 3.Kf3 b5! 4.b4
a) 4.Nf2 Ke1 5.Re2+ Kf1 6.Rd2 Ke1 7.Re2+ Kf1 8.Ng4 Qb1! (Not 8…Qc1? 9.Rf2+ Kg1 (9…Ke1 10.Ne3 +-) 10.Rg2+ Kf1 11.Nh2+ Ke1 12.Rg1+ Kd2 13.Rxc1 +-) 9.Rf2+ Ke1! 10.Re2+ Kf1 11.Ne3+ Kg1 12.Rg2+ Kh1 =
b) 4.Rf2+ Kg1 5.Nf4 Kh1 6.Ne2 Qd1 = ;4…Kg1! 5.Nf2 (5.Kg3 Qf1! transposes to 2nd thematic try) 5…Qf1! 6.Rd1 Kh2 7.Rxf1 stalemate

2…Kg1 3.Rxd2 a1Q 4.Kh3!
2nd thematic try 4.Kg3? Qf1! zz 5.b4 b5 zz 6.b3 Qb1! 7.Rg2+ Kf1 8.Rf2+ Kg1 9.Nf4 Qe1! (Not 9…Qxb3+? 10.Rf3 Qc4 11.Nh3+ Kh1 12.Nf2+ Kg1 13.Rd3 Kf1 14.Kf3 Qxb4 15.Rd1+ Qe1 16.Rxe1+ Kxe1 17.Ke3 +-) 10.Ne2+ Kh1 zz 11.Kf3 Qd1 =

4…Qb1
4…Qf1+ 5.Kg3 Qb1 (5…b5 6.b4 transposes to main line) 6.Rg2+ Kf1 7.Rf2+ Kg1 8.Nf4 Qe1 9.Ne2+ Kh1 10.b4 b5 11.b3 transposes to main line
4…Kf1 5.Kh2 +-

5.Rg2+
White plays to lose a tempo [5.b4? Qf1+ 6.Kg3 b5 etc.

5…Kf1 6.Rf2+ Kg1 7.Rd2! b5
7…Qa1 8.Rg2+ Kf1 9.Kh2 +-

8.b4
8.Kg3? b4 9.Rg2+ Kf1 10.Rf2+ Kg1 11.Nf4 Qe1 12.Ne2+ Kh1 zz 13.Kf3 Qd1 =

8…Kf1 9.Kg3!
Main 9.Kh2? Qc2! 10.Rxc2 stalemate

9…Kg1 10.Rg2+ Kf1 11.Rf2+ Kg1 12.Nf4 Qe1 13.Ne2+ Kh1 14.b3! zz 14…Qb1 15.Rh2#