Chess problem: 2 days ago

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Bruno's Chess Problem: 05/25/2016

V.F.Rudenko, Leninska Zmina, 1981

Mate in 2(***)
chess problem diagram
White to play


Level : * (very easy) to ****** (very hard)

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1. Ne7! ... 2. Nxc8#
  1. ... Qxd8 2. Nxb5#
  1. ... Qxc7+ 2. Qxc7#
  1. ... Qb7,Qa6 2. Ne8#
  1. ... Rc5+ 2. bxc5#
  1. ... Rxb4 2. Bxb4#
  1. ... Nxe7 2. Qxe7#
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2016-05-25 18:38:28, by problemist
No. 1141 in Преследование темы. There it is emphasized that also in the solution the two thematic mates occur after defenses of the bQ, namely in 1.. Qa6 2. Ne8# and 1.. Qxd8 2.Nxb5#. This welcome echo effect enhances the Rudenko theme from the other two phases of set and try.
2016-05-25 09:40:02, by slowbut2
before my seeing comments: My solution: to night mate\guard pawn, white's rdfour is start before mate with n\b\q\p\etc.
2016-05-25 07:10:45, by problemist
Shown is the Rudenko theme: Against a double threat A (2. Nxb5#), B (2. Ne8#) there defend in one phase (the try 1. Rd4? that fails to 1.. Nxc6!) the two black moves a (1.. Bxd5 2. Qf6#), b (1.. Rxd5 2. b5#) while in another (the set) on 1.. a 2. A# and 1..b 2. B# follow (two times the Dombrovskis paradox). The non-thematic key attacks the bQ theatening 2. Nxc8# with a couple of variations. Prize. FIDE Album (3+2+3 = 8 points).

Super-GM Валентин Федорович Руденко (19.2.1938-2.4.2016), UA, "The late Valentin Fedorovich Rudenko was a world-famous composer (no.4 in the FIDE-Album top of composers with more than 200 points) considered by some as the best orthodox problem composer. He was also the author of one of the best chess problem composition books ever written "Преследование темы. Москва, 1983." He proposed the date of January 4th as International Day of Chess Composition. His problems reached space levels when his threemover of Suomen Shakki 1957, 1st prize, was aboard the mission SOYUZ 9 (it is now on display in a museum in Cheboksary)." See wikipedia de, fr, it, lv, ru for more.

Since the opening in October 2000, I had published online more than 4931 free chess problems. If you want more details, look at my chess figures pages.

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