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MatPlus.Net Forum General A selfmate mystery
 
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(1) Posted by Steven Dowd [Monday, Sep 23, 2013 19:17]

A selfmate mystery


This is P1108585 in the PDB:

Gerhard W. Jensch
129 Mitteilungsblatt der Kieler SG 01/1983
s#8 (cooked)

(= 16+2 )



In his Alls Well That Ends well column of September 20, 1958 (25 years before Jensch), subtitled, "Suicide Candidate's Excessive Generosity," Walter Korn gives a practically identical position:

(= 16+2 )


and without naming it as a selfmate (but as a "birthday gesture" and an "aberration from tedious endgame analysis") gives a seven move solution starting with 1. Sf5, 7. Db5+ and encouraging the reader to guess Black's final move.

This seven move solution is of course cooked as well, but this leaves me wondering if there was not another author who came up with this "grotesque" 16+2 idea, driving the Black king across the board with a series of sacrifices, earlier?
 
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(2) Posted by Dominique Forlot [Tuesday, Sep 24, 2013 21:25]; edited by Dominique Forlot [13-09-24]

hi,

It's not the question but... I found, I think, a sound version to this problem (s#7 from Walter Korn) .

Fen= 2R1Q3/4NP2/p2PRNP1/P5kP/K7/B1P2P2/6P1/5B2

(= 16+2 )

s#7
(16+2)

1.g3!
1…Kh6 2.Qh8+ Kg5 3.Nc6 Kf5 4.Ne4 K×e6 5.Bh3+ Kd5 6.Qe5+ Kc4 7.Qb5+ a×b5‡
 
 
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(3) Posted by Steven Dowd [Wednesday, Sep 25, 2013 10:39]

The idea is to not only drive the king across the board, but to sacrifice a piece on each move as well. Nils Bakke has a problem in which 8 officers are sacrificed in 8 moves but not all pieces are taken by the king and some of the sacrifices are passive, in a 10+2 position. I think it is impossible to show 8 officers sacrificed actively in a 16+2 position, without duals.
 
   
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(4) Posted by Dominique Forlot [Wednesday, Sep 25, 2013 11:43]; edited by Dominique Forlot [13-09-25]

Oops! So, I was irrelevant twice :o(

this Theme would be named a "Pyrrhic defeat "
 
   
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(5) Posted by Steven Dowd [Friday, Sep 27, 2013 03:46]

I wouldn't worry, I was not exactly clear....
 
 
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MatPlus.Net Forum General A selfmate mystery