Nº 21 Richard Becker (USA)

Win
Sección B.1.

Richard Becker (USA)

wKf1,Qf5,Ng2/bKh2,Qe7,Pd6,e4

1.Qf2!
Thematic trials:
a)1.Qf4+? Kh3 zz WTM 2.Qh6+ Kg3 3.Qg6+ Kf3 4.Qf5+ (4.Qh5+ Kg3 5.Qf5 Qe5! =) 4…Kg3 5.Qf4+ Kh3 repeating;
b) 1.Ne3? Qh4! 2.Ke2 d5 3.Qe5+ (3.Qg6 Qh3 =) 3…Kh1! (3…Kh3? 4.Kf1! zz BTM) 4.Qa1+ Kh2 5.Qe5+ Kh1 =
1.Nf4? Qh4 2.Qxe4 Qg5 3.Ne2 Qf6+ =

1…Kh3
1…Qg5 2.Nf4+ Kh1 3.Ne2 +-

2.Qf4! zz BTM 2…d5
Main 2…Qd8 3.Qe3+!
Thematic try 3.Ne3? Qh4! 4.Qf5+ (4.Qe5 not possible) 4… 4…Kh2 5.Ke2 d5 as in thematic try above; 3.Qh6+? Kg3 4.Qe3+ Kg4 loss of time)
3…Kg4 (3…Kh2 4.Nf4! +-) 4.Qxe4+ Kh5 5.Nf4+! first echo
or 2…Qh7 3.Qg5! Kh2 4.Nf4 +-

3.Qf5+ (Qh6+)
3.Ne3? Qg7 4.Qf5+ Kg3 5.Qf2+ Kh3 6.Qf5+ Kg3 7.Kg1 Qa1+ 8.Nf1+ Kh4 =

3…Kg3 4.Qg6+ Kf3 5.Qh5+ Kg3 6.Qf5! Kh2
6…Qd8 7.Qf4+ Kh3 8.Ne3 etc.; or 6…e3 7.Qf4+ Kh3 8.Qf3 +-
7.Qf2!
Thematic try 7.Ne3? Qh4! 8.Ng4+ (8.Ke2 d4 9.Ng4+ Kg3! 10.Nf2 d3+ 11.Kf1 d2 12.Nxe4+ Qxe4! =) 8…Kh3! (8…Kg3? 9.Nf2! zz BTM 9…e3 10.Qg6+ Kf3 11.Qg2+ Kf4 12.Nd3+ Kf5 13.Qxd5+ Kg6 (Kg4) 14.Ne5+! third echo in virtual play) 9.Ne5+ (Nf6+)(Nh6+) 9…Kh2 10.Ng4+ Kh3 11.Nf2+ Kg3! zz WTM; 7.Nf4? Qh4 8.Qe5 Kh1 9.Ne2 Qh3+ =

7…Kh3 8.Qf4 Qd8
8…Qh7 9.Qg5 Qf7+ 10.Nf4 +-

9.Ne3!
9.Qe3+? Kg4 10.Qxe4+ not possible

9…Qg8
9…Qh4 10.Qe5! zz BTM; 9…Qc8 10.Kf2 +-

10.Kf2 Qg6 11.Qe5! Qf7+
11…Kh4 12.Ng2 +-
12.Kg1 Kh4
12…Qg8+ (Qg6+) 13.Kh1 +-

13.Nf5+! second echo