Nº 4 Richard Becker (USA)

Win
Sección B.1.

Richard Becker (USA)

wKg1,Qa6,Ne2,Pf3/bKc2,Qc7,Ng8,Pf5,f6,f7

1.Nd4+ Kc1 2.Qf1+ Kb2 3.Qe2+ Ka1 4.Qd1+ Kb2 5.Qb3+ Kc1 6.Qb4! Ne7
6…Nh6 7.Qe1+ Kb2 8.Qd2 +-; 6…Kd1 7.Kf1 Kc1 transposes to main line; 6…Qg3+ 7.Kf1 Qh3+ 8.Ke2 Qg2+ 9.Kd3 +-; 6…Qa7 7.Kf1 Qa6+ 8.Kf2 Qa7 (8…Qd3 9.Ne2+ Kc2 10.Qc5+ (Qb8) +-) 9.f4 Nh6 10.Ke1 +-

7.Kf1
7.Kf2? Qh2+ =; 7.Kg2? Ng6! =

With the following lines:

A) 7…Ng6 8.Qe1+ Kb2 9.Qd2/e2 Kb1 10.Qd3+ Kc1 11.Qe3+ Kb2 12.Qb3+ Kc1 13.Ne2+! Kd2 14.Qb2+ Ke3
14…Kd3 15.Nc1+ Ke3 16.Qf2+ Kf4 17.Qh2 +-
14…Qc2 15.Qb4+ Ke3 16.Qb6+ Kd2 17.Kf2! Qc4 18.Qb2 +-

15.Qd4+ Kxf3 16.Ng1+ Kg3 17.Qe3+ Kg4 18.Qh3+ Kg5 19.Nf3+ 1st distant self block 19…Kf4 20.Qh2+ wins;
or 7…f4 8.Kf2! f5 9.Qe1+ Kb2 10.Qd2+ Kb1 11.Qd1+ Kb2 12.Qb3+ Kc1 13.Ne2+ Kd2 14.Qb2+ Kd3 15.Nc1+ Kc4 16.Qc2 +-; or 7…Nc8 8.Ke1 (Ne2+) +-

B) 7…Ng8 8.Qe1+
8.Ke2? Qe7+! = or 8.Kf2? Qh2+ 9.Ke3 Qg1+ 10.Ke2 Qd1+ = or 8.Kg2? Kd1 9.Kf1 Kc1 loss of time

8…Kb2 9.Qd2/e2 Kb1 10.Qd3+ Kb2 11.Qb3+ Kc1 12.Qb4!
12.Ne2+? Kd2 13.Qb2+ Ke3! 14.Qd4+ Kxf3 15.Ng1+ Kg3 16.Qe3+ Kg4 (Kh4) 17.Qh3+ Kg5 18.Nf3+ Kg6 =
12.Qa2? Kd1 13.Qb1+ Kd2 14.Qe1+ Kd3 15.Qd1+ Ke3 16.Nc2+ (16.Nxf5+ Kf4 17.Qd4+ Kxf3 =) 16…Kf4 17.Qd2+ Ke5 (Kg3) =

12…Ne7 13.Qe1+
13.Ke2? Ng6(Qe5+) =

13…Kb2 14.Qd2/e2 Kb1 15.Qd3+ Kc1 16.Qe3+ Kb2 17.Qb3+ Kc1 18.Qa2!
18.Qb4? Ng8! Repeats

18…Kd1 19.Qb1+ Kd2 20.Qe1+ Kd3 21.Qd1+ Ke3 22.Nc2+ Kf4 23.Qd2+ Ke5
23…Kg3 24.Nd4 Kh4 25.Qh6+ Kg3 26.Kg1 +-

24.f4+ Ke6
24…Ke4 25.Qg2+ Kd3 26.Nb4+-

25.Nd4+ 2nd distant self block 25…Kd7 26.Nb5+ wins