Nº 9 Richard Becker (USA)

Draw
Sección A
.1.

Richard Becker (USA)
wKa4,Qe3,Pa2,b7/bKb2,Qf5,Nb1,Bd6

1.b8Q+!
Thematic try 1.Qb3+? Ka1! 2.b8Q Bxb8 3.Qxb8 Nc3+ 4.Ka3 Qf2 5.Qb7 (5.Qb3 Qa7+ 6.Kb4 Nxa2+ 7.Kb5 Qb7+ 8.Ka4 Qa6#) 5…Qh2! zz 6.Qb3 (6.Kb4 Qb2+ –+) 6…Qd6+ 7.Qb4 Nb1+ 8.Kb3 Qd3+ 9.Ka4 Qa6+ 10.Kb3 Qxa2#
Thematic try 1.Qb6+? Kc2! 2.Qb3+ Kd2 3.b8Q (3.Qb2+ Qc2+ –+) 3…Bxb8 4.Qxb8 Nc3+ 5.Kb4 (5.Ka3 Qa5+ –+) 5…Qb1+ 6.Ka3 Qxa2+! (6…Qxb8? stalemate) 7.Kb4 Qb2+ –+

1…Bxb8 2.Qb6+!
2.Qb3+? Ka1 etc.

2…Kxa2
2…Ka1 3.Qd4+! Kxa2 4.Qc4+ Ka1 5.Qd4+ =
2…Kc2 3.Qxb8 Nc3+ 4.Kb4 = (4…Qb1+ impossible)
2…Kc1 3.Qxb8 Nc3+ 4.Ka3 Qf2 5.Qb7! (5.Qb3? Qa7+ 6.Kb4 Nxa2+ 7.Kb5 Qb7+ 8.Ka4 Qa6#) 5…Qh2 (5…Qxa2+ 6.Kb4 Qb2+ 7.Ka5 Qxb7 stalemate) 6.Qb3! Qd6+ 7.Qb4 Nb1+ 8.Ka4 (Kb3) 8…Qa6+ 9.Kb3 Qd3+ (9…Qxa2+ not mate) 10.Ka4 =

3.Qb3+ Ka1 4.Qxb8 Nc3+ 5.Ka3 Qf2 6.Qb7!
6.Qb3? Qa7+ 7.Kb4 Na2+ 8.Kb5 Qb7+ 9.Ka4 (9.Kc4 Qf7 –+) 9…Qa6#

6…Qh2 7.Kb4! (No wPa2)
7.Qb3? Qd6+ 8.Qb4 Nb1+ 9.Kb3 Qd3+ 10.Ka4 Qa6+ 11.Kb3 (11.Qa5 Nc3+ (Qc5+) –+) 11…Qa2#

7…Qb2+ 8.Ka5 Qxb7 stalemate