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MatPlus.Net Forum General Looking for a solution
 
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(1) Posted by Frank Richter [Thursday, Sep 3, 2009 10:12]

Looking for a solution


In PDB the following s# can be found (P1090635):

Lajos Riczu
906 Novi Temi 1983
(= 11+8 )

s#12

There is no solution given, and neither a solution nor a cook was found by Gustav (resp. Olaf Jenkner). Can anyone compare this position with the corresponding issue(s) of Novi Temi and solve this problem?
 
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(2) Posted by Steven Dowd [Thursday, Sep 3, 2009 16:52]

I looked at that one a long time and couldn't think of a mating position that made sense. I wondered if a piece was missing and a black Ba7/b8 came to mind immediately (I wonder why?)but I couldn't find anything there either, although I may have been too impatient.
 
 
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(3) Posted by Frank Richter [Thursday, Sep 3, 2009 17:44]

I can imagine a mating position with the wK on e5 or d6, then X:f7 and S:f7#. But in the given position no way.
 
   
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(4) Posted by Siegfried Hornecker [Thursday, Sep 3, 2009 20:38]; edited by Siegfried Hornecker [09-09-03]

An idea:
1.Kf2 Kd8 2.Ke2 Ke8 3.Kd3 Kd8 4.Kd4 Ke8 5.Ke5 Kd8 6.Bd7 g4 7.fxg4 g5 8.Bc8 Ke8 9.Be6 fxe6 (Kd8 Bxf7!) 10.e5 Kd8 (Kf7!) 11.f7 Sxf7 mate
-> 6.d6 cxd6+ (Ke8!) 7.Kxd6 Ke8 8.Bd7+ Kd8 9.Be6 fxe6 (Ke8!) 10.e5 g4 (Ke8!) 11.fxg4 g5 (Ke8!) 12.f7 Sxf7 mate

The only issue is forcing bK to d8, i.e. preventing he goes to e8 at any time or forcing him to go back to d8.
 
 
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MatPlus.Net Forum General Looking for a solution