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MatPlus.Net Forum General can anyone here define the "Rice theme"?
 
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(1) Posted by Eugene Rosner [Monday, Jan 26, 2015 06:11]

can anyone here define the "Rice theme"?


I know a Rice cycle, but not a theme...can anyone help?
 
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(2) Posted by Hauke Reddmann [Monday, Jan 26, 2015 12:43]

a) http://yacpdb.org/?id=379899
b) I could swear this came up on MPF somewhen already,
c) I could look up the Degener 2# theme primer, but only tomorrow.

Nothing immediately helpful, eh? :-)

Hauke
 
 
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(3) Posted by seetharaman kalyan [Monday, Jan 26, 2015 20:23]

Hauk is right. This probably shows the Rice theme http://yacpdb.org/?id=379899.

Self pin by two different white pieces on the same square. Ideal I think will be if there are two unpins by black in both phases.
 
   
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(4) Posted by Eugene Rosner [Monday, Jan 26, 2015 21:24]

thanks Seetheraman! (check your note inbox by the way!)and Hauke. Just got word from John....the theme in its fullest sense requires 2x2 unpin variations.
 
   
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(5) Posted by Hauke Reddmann [Tuesday, Jan 27, 2015 11:17]

Yup. So does also the entry in Degeners book say.
 
   
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(6) Posted by Eugene Rosner [Tuesday, Jan 27, 2015 16:13]

If I may ask, in what format is the Degener theme primer available?
 
 
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(7) Posted by seetharaman kalyan [Tuesday, Jan 27, 2015 16:36]

Interestingly, in his book Chess Wizardry - New ABC of Chess problems J.M.Rice does not mention 'Rice cycle' (mentioned as Cyclic change) or the 'Rice theme' (ignored!).
 
   
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(8) Posted by John Rice [Tuesday, Jan 27, 2015 20:29]

I'm probably the obvious person to reply to the most recent posting on this subject. The "Rice cycle" is a term adopted by Peter Gvozdjak for his book Cyclone, which appeared in 2000. My Chess Wizardry dates from 1996. I was unhappy with the use of "Rice theme" for a white self-pinning theme which, though I had worked on it fairly intensively in the 1950s and 1960s, I certainly didn't invent; many other better composers had shown it before. So I didn't mention it in my ABC of Chess Problems (1970), the earlier version of Chess Wizardry.
 
   
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(9) Posted by Juraj Lörinc [Wednesday, Jan 28, 2015 02:26]

And while some people know, it might actually be useful to explicitly say, what is that Rice cycle, different from Rice theme.

Rice cycle is a cyclic change of mates (or attacks more generally) following two constant defences in three phases, according to letter scheme aA,bB - aB,bC - aC, bA, where a, b stand for defences and A, B, C stand for mates. See example: http://jurajlorinc.com/chess/cyclone2.htm#uloha1 or more at http://jurajlorinc.com/chess/ti_r.htm#ricec
 
   
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(10) Posted by Hauke Reddmann [Wednesday, Jan 28, 2015 12:28]

@Eugene: A very small but very handy book. Check here for details:
http://www.amazon.de/Von-Ajec-Zappas-Problemschach-Lexikon-Zweiz%C3%BCger-Themen/dp/3940531529/ref=sr_1_1?ie=UTF8&qid=1422443646&sr=8-1&keywords=ajec+zappas

Note: *only* twomovers, so it's not surprising you need five Degeners
to weigh up one Milan.

Hauke
 
   
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(11) Posted by Sven Hendrik Lossin [Thursday, Jan 29, 2015 13:13]; edited by Sven Hendrik Lossin [15-01-29]

I think there is no need that a big oligopolist makes some profit here. You should rather try it here:
http://www.udo-degener-verlag.de/grille/schach.html

Send an e-Mail to Udo he will certainly send you a copy.
 
   
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(12) Posted by Hauke Reddmann [Friday, Jan 30, 2015 14:16]

@Sven: Srsly, but guess which link Google suggested first and
successfully speculated on my lazyness? :-)
 
 
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MatPlus.Net Forum General can anyone here define the "Rice theme"?