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MatPlus.Net Forum Retro/Math Moves that determine all the previous moves
 
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(81) Posted by ichai [Thursday, May 19, 2016 08:45]

Thank you for correcting Alain.
In fact I was not sure of the author's name.
Where did you read that ?
 
   
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(82) Posted by Alain Villeneuve [Thursday, May 19, 2016 09:30]

I don't know. I thought it was here

http://abrobecker.free.fr/chess/synthetics.htm

but cannot find it again.
 
   
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(83) Posted by Olaf Jenkner [Thursday, May 19, 2016 13:42]

See http://pdb.dieschwalbe.de/search.jsp?expression=probid=%27P0005334%27
 
   
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(84) Posted by Alain Villeneuve [Thursday, May 19, 2016 15:36]

Thank you Olaf ! The only thing I am sure is that this problem, with the exact stipulation given by Ichai saturday and repeated monday, was showed to me by the late Albert Frank in the Val Thorens tournament 1978 (but he knew it since 1967). Later, somebody told than J. Mestel had showed the same problem in the olympiads of 1976. This does not make us younger !

http://france-echecs.com/article.php?art=20090226154419466

http://abrobecker.free.fr/chess/sansdiag.htm

See 5.a vii & xxi.
 
   
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(85) Posted by Alain Villeneuve [Thursday, May 19, 2016 15:46]

Some others for training !


http://wismuth.com/chess/problems-moves.html
 
   
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(86) Posted by ichai [Friday, May 20, 2016 13:33]; edited by ichai [16-05-20]

Thank you Olaf !

It is clear that the stipulation in the database is wrong.
Where was it quoted from ?
May that be checked ?

Another question :

"....
a) 7.Ka3# Stuart Rachels, 2015.
b) 7...Kxb7# Alex Fishbein, 2016.
...."

Where was it published first ?
 
   
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(87) Posted by ichai [Sunday, May 22, 2016 01:39]; edited by ichai [16-05-22]

I had a more careful look at wismuth,com and the
7...Kxb7# is quoted "Alex Fishbein The Problemist march 2016"
 
 
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MatPlus.Net Forum Retro/Math Moves that determine all the previous moves