Nº21 Richard Becker (USA)

Win

Section B.1.

Richard Becker (USA)

wKe7,Rh3/bKg8,Ng7,Pa6,a7

1.Rd3!
1.Rc3? Kh7 2.Kf6 Ne8+ 3.Kf7 Nd6+ 4.Ke7 (Ke6) 4…Nb5 =
1.Rh1? Nf5+ 2.Kf6 Ne3 3.Rh5 Nc4 4.Rc5 Nb6 =
1.Rh2? Nf5+ 2.Kf6 Nd6 3.Re2 Kf8 =

1…Nh5
Symmetrical variation 1…Kh7 2.Kf6 Nh5+ 3.Kg5 Ng7 4.Rd7 Kg8 5.Kf6 Nh5+ (5…Ne8+ 6.Ke7 Ng7 7.Rd5 Kh7 8.Kf8 +-) 6.Kg6 Nf4+ 7.Kg5 Ne2 (bN has no safe square) 8.Rxa7 (Or 8.Kf6 Nc3 9.Rxa7 transposing) 8…Nc3 9.Kf6 Ne4+ (9…Nd5+ 10.Ke5 (Ke6) +-) 10.Kf5 Nd6+ 11.Ke5 Ne8 12.Ke6 Ng7+ 13.Kf6 Nh5+ (13…Ne8+ 14.Ke7 Ng7 15.Ra8+ (Rc7) +-) 14.Kg6 Nf4+ 15.Kg5 Ne6+ 16.Kf6 +-

2.Rd5 Nf4 3.Rd4 Nh5 4.Rh4 Ng7 5.Rh3!
Thematic try : 5.Re4? a5! zz 6.Rg4 (6.Re1 a4 =) 6…Kh7 7.Kf6 Ne8+ 8.Kf7 Nd6+ 9.Ke7 Nc8+! 10.Kf6 Nb6 (bN has found a safe square) 11.Rg5 a4 12.Rg7+ Kh6 13.Rxa7 Nd5+ =

5…a5
5…Nf5+ 6.Kf6 Nd6 7.Rd3 Ne8+ 8.Ke7 Nc7 (8…Ng7 9.Rd5 Kh7 10.Kf8 +-) 9.Rd7 Nb5 10.Kf6 Nc3 11.Rxa7 transposes to symmetrical variation

6.Rd3 Nh5
6…a4 7.Rd8+ Kh7 8.Kf6 Nh5+ 9.Kg5 Ng7 10.Rd7 Kg8 11.Kf6 Nh5+ (11…Ne8+ 12.Ke7 Ng7 13.Rxa7 Nh5 14.Ra5 +-) 12.Kg6 Nf4+ 13.Kg5 Ne2 14.Rc7 (Rxa7) +-

7.Rd5 Nf4 8.Rd4 Nh5 9.Rh4 Ng7 10.Re4! zz 10…a6

MAIN 10…Nf5+ 11.Kf6 Nd6 12.Re6 Nc4 13.Re8+ Kh7 14.Re7+ Kh6 (14…Kg8 15.Rxa7 +-) 15.Re4 Nb6 16.Rh4#
or 10…a4 11.Rxa4 Kh7 12.Kf6 Ne8+ 13.Kf7 Nd6+ 14.Ke7 +-
or 10…Nh5 11.Re5 Nf4 12.Kf6 +-

11.Rg4 Kh7 12.Kf6 Ne8+
12…Nh5+ 13.Kg5 Ng7 14.Re4 Kg8 15.Kh6 +-

13.Kf7 Nd6+ 14.Ke7 Nb5
No safe square now on b6) 14…Nc8+ 15.Kf6 Nb6 16.Kf7 +-

15.Kf6 Nd6 16.Rd4 Nb5 17.Re4 Kg8
17…Nc3 18.Rc4 Na2 (18…Nb5 19.Rc6 a4 20.Rxa6 +-) 19.Ra4 Nc3 20.Rxa5 Ne4+ 21.Kf5 Nd6+ 22.Ke6 Ne8 (22…Ne4 23.Re5 +-) 23.Ke7 Ng7 24.Kf8 (Kf6) +-

18.Re8+ Kh7 19.Re6 Nc3 20.Kf7!
20.Rxa6? Nd5+! 21.Kf7 Nf4 22.Kf6 Nd5+ 23.Ke5 Nb4 =

20…a4
20…Nb5 21.Rxa6 +-

21.Re3
21.Rxa6? Ne2 22.Rxa4 Kh6 =

21…Nb5 22.Rh3#