Die Schwalbe

1 problem(s) found in 2352 milliseconds (displaying 1 problem(s)). [PROBID='P1382532'] [download as LaTeX]

1 - P1382532
Kostas Prentos
The Royal Moroccan Chess Federation (FRME) 11/2020
Lob ex aequo
6. Turnier FRME
Sektion s#4-n
(11+6) C+
1. Sc2-e3! Lg8-h7 2. Lh4xf6+ Kh8-g8 3. Tf7-g7+ Kg8-h8 4. Tg7-d7+ Kh8-g8 5. Db4-c4+ Kg8-f8 6. Lf6-e7+ Kf8-e8 7. Dc4-c8+ Ke8-f7 8. Le7-h4+ Kf7-e6 9. Se3xf5+ Ke6xf5 10. Dc8-b8 Lh7-g8 11. Td7-f7+ Lg8xf7#
play all play one stop play next play all
Two white pieces return to their initial position on the diagram, after performing linear roundtrips: Bh4?f6?e7?h4 and Rf7?g7?d7?f7. In the course of the solution, they change roles as front and rear pieces of reciprocal batteries (Zabunov theme). Twice, Black avoids a mate by Zugzwang (1...Bxf7# and 10...Bg6#), only to be forced to deliver the same mate (11...Bxf7#) eventually.

Judge Valery Kopyl
Keywords: Batterie Typ Zabunov
Genre: s#
Computer test: Gustav 4.1c
FEN: 6bk/5R2/5p1P/1P3p1K/1Q3PpB/2P3p1/2N3P1/4R3
Input: Marcin Banaszek, 2020-11-28
Last update: Rainer Staudte, 2020-11-28 more...
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Marcin Banaszek (1)