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| Problem 732.1: Aleksey Oganesjan & Anatoly Stepochkin - Helpmate |
  (18.06.2016) Aleksey Oganesjan joins with another Russian expert to add the second castling to his task of Valladao.732.1. Aleksey Oganesjan (Russia) &
Anatoly Stepochkin (Russia)
18.06.2016
 H#2 b) Qf1-f6 (5+13)
a)1.0-0-0 Qc1 2.Qb8 Bxf5#
1.0-0 Qxf5 2.g5 Qxh7#
b) 1.Sxa4+ Bxa4+ (A) 2.b5 axb6 e.p.# (B)
1.a1R axb6 (B) 2.Rxa4 Bxa4# (A)
Valladao with model mates. HOTF:
a) castlings and play on the same square (f5)
b) annihilation of white Pawn and reciprocal change of moves. (Authors)
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