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Задача 346: Zlatko Mihajloski - Helpmate

mihajloski(19.02.2014) New helpmate moremover by Zlatko Mihajloski from Macedonia.





346


1.Re3! Bf2 2.Rxg3 Bd4+! 3.Kf4 Bxc3 4.Re3! dxe3+ 5.Kg3 Be1#

wB Rundlauf, bR switchback, Ideal mate (Author)
 

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0 #1 seetharaman 2014-02-20 13:09
Rundlauf is always interesting (even if double rundlauf has been done already). Nice problem combining black switchback also!
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0 #2 Nikola Predrag 2014-02-21 09:09
Rundlauf is interesting only as much as the motivations for it. Round trip without a motivation to annihilate some piece is purely motivated by a proper synchronization of the play.
Here, bK's access to f4 and g3 would be impossible if Pd2xRe3 happens too early. Therefore, wB can't count on Be1-d2 or Be1-c3 to unguard g3. Most interesting is that while wB can't pass through d2 in one direction, it can do it in the opposite direction. A one-way valve.
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