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MatPlus.Net Forum Competitions DELIA-25 JT
 
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(1) Posted by Eric Huber [Friday, Feb 18, 2011 22:14]; edited by Eric Huber [11-02-20]

DELIA-25 JT


University Sports Club Brasov and Romanian Chess Composition Committee are organizing Delia-25 JT, dedicated to the 25th anniversary of Romanian lady composer Delia-Monica Duca.

The theme proposed by judge Paz Einat, International Arbiter, is:

Required are orthodox twomovers showing [edit February 20th, 2011] any kind of correspondence between white and black in terms of the specific and well-defined elements, or themes, used in the solution. “Solution” is meant to include possible set and tries. Any imaginative but well defined correspondence will be accepted as thematic.

In example 1 the theme is shown within the solution: two black defenses are promotions and in three other variations there are white promotion mates.
In examples 2 and 3 the theme is shown between try and solution: in example 2 the theme is presented between the two tries (white half-pin) and solution (black half-pin) and in example 3 we see again white half-pin in the two tries and black half-pin in the solution.

Example 1
PAZ EINAT - original
[ after J. van Allemeersch L'Echiquier Belge 1949]

(= 10+10 )

#2
1.Kg1! (2.Qxh4 #)
1...bxa1=Q 2.Rb8 #
1...axb1=Q 2.Ra8 #
1...Re8 2.fxe8=Q #
1...Rh6 2.f8=Q #
1...Rg8 + 2.fxg8=Q #

Example 2
Nenad PETROVIC & Sveto STAMBUK
Deutsche Schachzeitung 1976
1st Prize

(= 7+8 )

#2

1.Rf4? [2.Bc4#]
1...Sd2 a 2.Rf5# A
1...Sc2 b 2.Re5# B
but 1...Sd4!

1.Re4! [2.Bc4#]
1...Sd4,Sd2 a 2.Re5# B
1...Sc2! b 2.Rf5# A
1...S4~ 2.Qd3#

Example 3
Sergeï SHEDEI
Sotsialistichna Kharkivshina 1980

(= 11+10 )

#2

1.e3? [2.Bb4#] but 1...Se4!
1.c3? [2.Bb4#] but 1...Sc4!

1.Qa1! [2.Bb4#]
1...Se4 2.c4#
1...Sc4 2.e4#

Judge: Paz Einat [edit February 20th, 2011]
Entries should be sent until 15 July 2011 to the tournament director Delia-Monica Duca:
chesscomposition@yahoo.com
or
str.Harmanului no.29, Bl.2,sc.B, ap.27, Brasov 500232, ROMANIA
 
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(2) Posted by Vlaicu Crisan [Sunday, Feb 20, 2011 14:55]

Is the tournament open only for twomovers? Who will be the judge?
 
 
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(3) Posted by Eric Huber [Sunday, Feb 20, 2011 20:12]

Only orthodox twomovers.
Judge: Paz Einat.
 
   
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(4) Posted by Jacques Rotenberg [Monday, Feb 21, 2011 07:26]; edited by Jacques Rotenberg [11-02-21]

Is this thematic ?

Colin Sydenham
Diagrammes 1980
(= 8+5 )
2#

1.Rg8? [2.B×e7‡] but 1…Re8!
1.Rg5? [2.B×e7‡] but 1…Re5!
1.Rg4? [2.B×e7‡] but 1…R×e4!

1.R×g3! [2.B×e7‡]
1…Re8 2.Bg7‡
1…Re5 2.f×e5‡
1…R×e4 2.Sc×e4‡
1…R~7,Re6 2.R(×)e6‡

Monkey theme
 
   
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(5) Posted by Paz Einat [Thursday, Feb 24, 2011 08:04]

Jacques, this is thematic... and it look better than the Donkey theme...
 
   
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(6) Posted by Jacques Rotenberg [Thursday, Feb 24, 2011 21:31]

What do you mean ???
 
   
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(7) Posted by Paz Einat [Monday, Feb 28, 2011 18:22]

Just a small joke... I never heard of the Monkey theme before.
 
   
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(8) Posted by Jacques Rotenberg [Thursday, Mar 10, 2011 21:58]

It is, I must say, the first time I can see such a strange "joke" here.

I don't know who is the monkey and who is the donkey.

About "Monkey theme" : the first time I could hear of it was, if I remember well, by Ivunin, at the Belfort congress in 1994.
The expression, as I understood it, means something like " A move is answered by a similar (equipollent) move". I found it clear, straightforward and effective, that's why I used it here without further explanation.
 
   
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(9) Posted by Paz Einat [Saturday, Mar 12, 2011 09:43]

Jacques,

Thanks for the clarification on the Monkey theme.
As for the Donkey, I had in mind the famous "Trick Donkeys" puzzle of Sam Loyd, whose book (by White) I had browsed lately.
 
   
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(10) Posted by Paz Einat [Saturday, Mar 12, 2011 11:37]

BTW, it seems to me that the theme allows many possibilities in many genres and I wonder how many problems were composed. I tried to look in Winchloe but it seems that the theme is not listed there. I looked for "singe", is this the right word for monkey in French?
 
   
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(11) Posted by Jacques Rotenberg [Sunday, Mar 13, 2011 02:24]; edited by Jacques Rotenberg [11-03-13]

Who knows what you have in mind ?

if you are interested in translations :
'monkey' is 'singe' in french, 'kof' in hebrew (קוף)
'donkey' is 'ane' in french, 'h'amor' in hebrew (חמור).

about wchloe, you can search on "coups équipollents", but I don't know if it is automatically recognized. You can search also "Loshinsky"
 
   
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(12) Posted by Paz Einat [Sunday, Mar 13, 2011 09:10]

I have in mind a good JT tourney for Delia !!

I figured it out yesterday, indeed "Coup equipollents". A total of 84 problems in many genres but only 10 two-movers, so there's plenty of room to compose
 
   
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(13) Posted by Jacques Rotenberg [Tuesday, Mar 15, 2011 15:06]

You seem to have many things in mind, and what you write is not clear.
 
   
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(14) Posted by Paz Einat [Tuesday, Mar 15, 2011 18:27]

Jacques, I hope you do not imply to things not related to this thread.

I believe that "Coup equipollents" is the term to look for problems showing the monkey theme you described.

I looked in WinChloe using "Coup equipollents" in the "themes" under "Query". This resulted in a total of 84 problem which show this theme. Of these there were 10 orthodox two-movers. This suggests that there is room for more Monkey theme ideas at least in orthodox two-movers.
 
   
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(15) Posted by Jacques Rotenberg [Wednesday, Mar 16, 2011 01:53]

"....I hope you do not imply to things not related to this thread...."

oh oh !

Can you say what about ??
 
   
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(16) Posted by Paz Einat [Wednesday, Mar 16, 2011 07:43]

Here is another nice example of the Monkey theme:

Srecko Radovic
3rd Prize Internet tourney, Portoroz 2002

(= 13+10 )
#2

1.Sc4? [2.Re5#] but 1…Sd3!
1.S5d3? [2.Re5,Rc4#] but 1…Se2!
1.S5f3? [2.Re5#] but 1…Sg2!
1.Sc6? [2.Re5#] but 1…Sxd5!
1.Sf7? [2.Re5# but 1…Sxg6!

1.Sd7! [2.Re5#]
1…Sg2 2.f3#
1…Sd3 2.Rc4#
1…Sxd5 2.Bxd5#
1…Se2 2.d3#
1…Sxg6 2.Qxg6#
 
   
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(17) Posted by Jacques Rotenberg [Tuesday, Mar 22, 2011 00:23]; edited by Jacques Rotenberg [11-03-22]

The "little joke" you used is mainly offensive.
The "donkey trick" has nothing with chess, and of course is not a theme.
 
   
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(18) Posted by Paz Einat [Wednesday, Mar 23, 2011 16:28]

Jacques, I had no offensive meaning whatsoever. None at all. If you would have known me slightly better you would surely know that I am not this type of person.
 
   
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(19) Posted by Juraj Lörinc [Wednesday, Mar 23, 2011 17:30]

Thanks gentlemen for inspiring me to write post on the monkey theme in my Slovak blog:
http://lorinc.blog.sme.sk/c/260271/Sachove-opicenie.html
 
   
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(20) Posted by Jacques Rotenberg [Thursday, Mar 24, 2011 01:13]

Paz, I know you well : I met you several times, I had with you also long telephonic conversations, I can also read what you write here (several posts) and in some other places. For sure one thing can be said : you are not that kind of persons who does not understand what he says or writes.
 
   
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MatPlus.Net Forum Competitions DELIA-25 JT