Chess problem: 5 days ago

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Bruno's Chess Problem: 09/12/2021

S.Sovik (3 solutions), 3rd Pr., Suv Csztv, 1970

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

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1. Na5! ... 2. c4#
  1... Nxa5, cxb5 2. Rxd6#
  1... exf5 2. hxg8=Q#
  
1. fxg5! ... 2. Nf4#
  1... cxb5 2. Rxd6#
  1... exf5 2. hxg8=Q#
  1... fxg5 2. Qxe5#
  
1. Nxg5! ... 2. Qxe4#
  1... Bxh7 2. Qxe6#
  1... cxb5 2. Rxd6#
  1... exf5 2. hxg8=Q#
  1... fxg5 2. Qxe5#
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2021-09-13 10:33:51, by slowbut2
today is pretty rational then :-)
2021-09-13 08:36:01, by problemist
This is postmodern relativism, politically correct, and most common worldview today :-)
2021-09-12 20:51:51, by slowbut2
why would be wrong to think that rational is in the eyes of the beholder, since anything can be considered rational that is supported also by others based on a common logic applied on a common assumption\ cause\ crede\ etc.?
2021-09-12 18:52:13, by problemist
Locke is focusing on religion and religious wars of his time, e.g., the Thirty Years' War. Later various pseudo-religious ideologies arose that made it even worse, but I would not call them rational. Karl Popper's philosophy of 'critical rationalism' could be an example what we would mean by 'rational' today. That we are rational creatures goes back to Aristoteles, see the article "Rational animal" of Wikipedia. One may also question this as Bertrand Russell did: "Man is a rational animal — so at least I have been told. Throughout a long life I have looked diligently for evidence in favour of this statement, but so far I have not had the good fortune to come across it."
2021-09-12 14:45:37, by slowbut2
update re rational: WW2
2021-09-12 09:48:56, by problemist
"Religion, which should most distinguish us from the beasts, and ought most particularly elevate us, as rational creatures, above brutes, is that wherein men often appear most irrational, and more senseless than beasts." John Locke (1632-1704) "An Essay Concerning Human Understanding" (1689), Book IV, Ch. 18.

Here the three solutions seem to be intended. In the set are 1.. cxb5, exf5 2. Rxd6#, hxg8Q(B)# which also occur in the play. Not 1. Nd2?, Nxd6? with multiple threats but 1.. Ra4!, cxb5! The keys are 1. Nxg5, Na5, fxg5 with the threats 2. Qxe4#, c4#, Nf4# and 1.. fxg5 2. Qxe5#; 1.. Nxa5 Rxd6#; 1.. Bxh7 2. Qxe6#. Any ideas about the theme? yacpdb mentions the Barnes theme: The double threat 2. Qxe4#, c4# of 1. Nd2? is split up into single threats, but what about the 3rd solution?

Štefan Sovík (* 29.12.1944 in Mosonmagyaróvár) Slovak composer and International Master. "Štefan Sovík composes mostly direct and selfmates in 2-3 moves and enjoys cyclic themes. He has become an International Judge in 2017."
2021-09-12 09:03:07, by slowbut2
re 2021-09-12 08:59:42, by slowbut2... starts
2021-09-12 08:59:42, by slowbut2
before my seeing others’ comments: My solution [arrived to through the 32-pixel, B&W, restartable-moving-pieces setting and “(?)”]: in view of the following possibility\s::::::
\\ ,,,,,,,,,,,,,,,,,,,,, it seems [ re-verification is intended later on and before seeing others’ comments] that white's 2. ngfive 3. nafive
2021-09-12 08:51:15, by slowbut2
before my seeing others’ comments: My solution [arrived to through the 32-pixel, B&W, restartable-moving-pieces setting and “(?)”]: in view of the following possibility\s::::::
black pawn captures queen before promotion mate [or knight or queen mate] \\ ,,,,,,,,,,,,,,,,,,,,, it seems [ re-verification is intended later on and before seeing others’ comments] that white's gfive starts

Since the opening in October 2000, I had published online more than 6650 free chess problems. If you want more details, look at my chess figures pages.

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