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MatPlus.Net Forum General Hofmann theme
 
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(1) Posted by Aleksey Oganesjan [Wednesday, May 4, 2022 16:44]

Hofmann theme


New article by Valery Kopyl "Hofmann theme - reciprocal change of white moves in tries and in solution" was published:

http://superproblem.ru/doc/E-books/Hofmann-theme_eng.pdf (in English)
 
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(2) Posted by Hauke Reddmann [Wednesday, May 4, 2022 20:04]

Just for the record: Fritz Hoffmann, 2 f. (Both version of the last name
are very prevalent in Germany. For example, the LSD guy had only one :-)
 
 
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(3) Posted by Torsten Linß [Wednesday, May 4, 2022 21:13]

@Hauke
Fritz HoFFmann was not yet born in the 1880s, when Fritz HoFmann composed chess problems. ;-)
 
 
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(4) Posted by Aleksey Oganesjan [Wednesday, May 4, 2022 21:19]

> Fritz Hoffmann, 2 f

No. Apparently you mean Fritz Hoffmann (1932-2016).
But the author of this #3 (that was published in 1887!) is of course another Fritz Hofmann (with one 'f'!).
See a comment of the user "Nightrider" here:

https://pdb.dieschwalbe.de/P1030835
 
   
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(5) Posted by shankar ram [Thursday, May 5, 2022 06:00]

The pattern 1.A? b 2.C. 1...a!; 1.B? a 2.C. 1...b!; 1.C! a/b 2.B/A has also been called as "Kontrawechsel".
A recent example with reciprocal change is https://juliasfairies.com/problems/no-1224/
 
 
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(6) Posted by Thomas Maeder [Thursday, May 5, 2022 06:18]

> Both version of the last name are very prevalent in Germany. For example, the LSD guy had only one :-)

Just for the record: The LSD guy Albert Hofmann was Swiss, not German :-)
 
 
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(7) Posted by Torsten Linß [Thursday, May 5, 2022 08:01]

@Thomas
I think Hauke meant to write "prevalent in German", which should be correct [even by ultra-precise Swiss standards...]
 
   
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(8) Posted by Hauke Reddmann [Thursday, May 5, 2022 08:35]

Wait, there are a Fritz with one and one with two f, both composers?*
Ah bother, all Germans are named Fritz :-)

* No, not Ffritz. That would be a Brit. (insert "Feuerzangenbowle" shout-out)
 
   
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(9) Posted by Frank Richter [Thursday, May 5, 2022 09:11]

Even german chess software is called "Fritz", but not Hof(f)mann ...
 
   
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(10) Posted by Olaf Jenkner [Thursday, May 5, 2022 09:55]

Don't forget Gustav Jonsson and Gustav von Broecker.
 
   
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(11) Posted by Andrew Buchanan [Friday, May 6, 2022 04:31]

Francois Labelle's engine is named after the mathematician Carl Gustav Jacob Jacobi :)
 
 
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MatPlus.Net Forum General Hofmann theme