Nº13 Richard Becker


Section B.2.

Richard Becker (USA)


Thematic try 1.e8Q? Qb6+ 2.Kc3 (2.Ka2 Bxc2!–+) 2…Qd4+ 3.Kb3 Qc4+ 4.Ka3 Qc5+ 5.Kb3 Qxc2+ 6.Ka3 Qc1+ 7.Kb4 Qb2+ 8.Ka5 Qa3+ 9.Qa4 Qc5+ 10.Kxa6 Bc8#

With the following lines:

A) 1…Kd4 2.e8Q Qb6+ 3.Ka4!
a) 3.Ka3? Bxe4 4.Qe5+ Kd3 5.f5 a5 6.f6 Qb4+–+;
b) 3.Ka2? Be6+! 4.Ka1 Qb3 5.Qh8+ (5.Qd8+ Kxe4 6.Qd2 Kf3!–+) 5…Kxe4 6.Qb2 Qa4+ 7.Kb1 Kd3 8.Qf2 Qd1+ 9.Kb2 Bd5!–+

3…Bxe4 4.Qe5+ Kd3 5.h4!!
Thematic tries 5.f5? Bf3! 6.Ka3 Kc2–+
or 5.g4? Qc6+! 6.Ka5 Kc4 7.f5 Qb5+ 8.Qxb5+ axb5 9.f6 Bd5! 10.h4 b4 11.h5 b3 12.h6 b2–+

a) 5…Bf3 6.Qf5+! Kd4 7.Qc2=
b) 5…Bc6+ 6.Ka3 Bf3 7.Qe1! Kc2 (7…a5 8.Qf1+=) 8.Qb4 Qe3+ 9.Ka4 Be2 10.Ka5=

6.Kb4? Bd5 7.Qf5+ Kd2–+

6…Kc4 7.f5 Qb5+ 8.Qxb5+ axb5 9.f6 Bg6
9…Bd5 10.h5 b4 11.h6=

10.g4 b4 11.h5 Bf7
11…b3? 12.hxg6+-

12.h6 b3 13.h7 b2 14.h8Q b1Q 15.Qc8+=

B) 1…Bxe4 2.e8Q Qb6+ 3.Kc3
3.Ka3? Kd4! etc.

3…Qc5+ 4.Kb3
4.Kb2? Qb4+ 5.Ka2 Kd4! 6.Qe5+ Kd3 7.Qb2 Bd5–+

4…Qc4+ 5.Ka3 Qc3+ 6.Ka2 Qc2+ 7.Ka3 Qc1+ 8.Kb4
8.Ka4? Bc2+ 9.Ka5 Qa3+ 10.Kb6 Qd6–+

8…Qb2+ 9.Ka5 Qa3+ 10.Qa4 Qc5+ 11.Kxa6 Qc8+ 12.Ka7 Qc7+ 13.Ka8 Qb6 14.h3!! zz
Thematic tries 14.g4? Bf3! 15.Qa3 Ke4 16.Qc3 Kxf4–+
or 14.h4? Bf3! 15.Qa3 Ke4 16.Qc3 Bg2 17.Qd2 Kf3–+

14…Bf3 15.Qa3 Ke4 16.Qc3 Bg2 17.Qd2 Kf3 18.Qe1! Qc7 19.f5 Qb6
19…Bxh3 20.Qd1+ Kxg3 21.Qe1+ Kh2 22.Qh4=

20.f6 Qc7 21.f7 Qxf7 22.Kb8=

Logical study with systematic maneuver and sacrificial key showing foresight effect. Each of two main lines is solved with a different unique move by the h-pawn.