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{Stale}mate 
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King
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Joined: Sat Feb 12, 2011 11:10 am
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Post Re: {Stale}mate
Dear Kornrade,
Unfortunately your study appears to be incorrect, because there is at least one alternative solution:
1.Bh3 gxh3 2.a4 h2 3.a5 h1=Q 4.Nexf3 Qxg1+ (first variation of your solution)

and now 5. Kxg1 bxa5 6.b6 a4 7.Ne5 a3 8.Ng6 a2 9.Ne7# :?:

A faster mate without touching the g-pawn. Guess you must do some repair work before publishing it...

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Sat Apr 16, 2011 2:15 am
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Knight
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Post Re: {Stale}mate
You are right about that variation, but...
The toughest defense by Black, and the proper way of rendering the solution is:
1.Bh3 gxh3 2.a4 h2 3.a5 bxa5 4.g4
4... h1=Q 5.Nxf3 Qxg1 6.Nxg1 {on any queen move, white captures}
4... h1=N+ 5.Kxf3 Nxg3 6.Kxg3 {on any knight move, white captures}
4... hxg1=Q+ 5.Kxg1 f2+ 6.Kxf2
==== these moves could be placed everywhere in the solution ====
6... a4 7.g5 a3 8.g6 a2 9.g7 b6 10.g8=Q+ Kb7 11.Qb1#

Putting the solution this way, it is clear that all options lead to a mate in 11. The problem does not need to be changed, I just needed to be a little more attentive in writing the solution.
Thank you for pointing out the inaccuracy.

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Mon Apr 18, 2011 1:39 pm
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King
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Joined: Sat Feb 12, 2011 11:10 am
Posts: 261
Location: Southern Germany
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Post Re: {Stale}mate
Well Kornrade,

you are right. The solution was wrong, the position is ok. Just checked it :D

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Tue Apr 19, 2011 12:40 pm
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