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Subject: Re: Trolling, #1: The right wrong move

Author: Mike S.

Date: 22:21:25 12/07/01

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On December 07, 2001 at 23:32:01, Dann Corbit wrote:

>>[D]8/8/8/7p/P5p1/5n1N/1P3k2/7K b - - 0 47

>Taking the knight is a mate in 23 (via tablebase) despite both sides queening
>(...)
>  35849404  1:36.4  Mat23 19t  1...gxh3 2.a5 Kg3 3.a6 Ne5 4.a7 Nd3 5.a8=Q Nf2+
>                               6.Kg1 h2+ 7.Kf1 h1=Q+ 8.Qxh1 Nxh1 {EGTB} {340}

Interesting... it may have been unknown so far, that gxh3 would have won (too).
At least I didn't know it :o).

>The king move (on the other hand) prevents the other side from queening, but
>takes longer to win.
>(...)
>19  2198 14206 84441737  Kf2-f1 Nh3-f4 g3 Nf4-g2 h4 Ng2-e3 Kf1-e2 Kh1-g2 Ke2xe3
>Kg2-h3 Ke3-f2 Kh3-g4 g2 Kg4-f5 g1=Q Kf5-e6 Qg1-g4 Ke6-f6 Qg4xa4 Kf6-f5 Qa4-c2
>Kf5-f4 Kf2-g2

Look at Black's third move...

(Meanwhile I realise 1...Kf1 is probably one of these "right move, wrong reason"
moves which programs play seeing only part of the idea. The third move may be
even more difficult that the first - although many programs actually prefer
1...Kf1.)

Regards,
M.Scheidl



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