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Subject: Re: Perhaps not a mate in 23

Author: Pierre Bourget

Date: 09:55:26 03/13/02

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On March 13, 2002 at 12:25:19, Olaf Jenkner wrote:

>On March 12, 2002 at 05:17:34, Ed Schröder wrote:
>
>>[d]8/p7/qb5p/p7/p6p/7p/2P1P2k/2Q2K2 w - - id M23;
>>
>>I found another long mate in my database, however I lost the solution!
>>
>>Ed
>
>The position is probably not a mate in 23.
>I tested with 3 flights for the black king.
>Maybe there is a line which ends in the 23th
>move but other lines are longer.
>
>OJe

This is a study by Nadareishvili ,2nd Hon. Mem. Shakhmaty v SSSR 1946.This is
not a chess problem like white to play and mate in 23 moves but a chess study
that must be read white to play and win so the number of moves isnot important
here.

Solution:

Nadareishvili,G - [+4030.26f1h2]
2.c ts23, 1946

1.Qf4+ Kh1 2.Qe4+ Kh2 3.Qe5+ Kh1 4.Qd5+ Kh2 5.Qd6+ Kh1 6.Qc6+ Kh2 7.c4 Kg3
8.Qf3+ Kh2 9.Qf4+ Kh1 10.Qe4+ Kh2 11.Qe5+ Kh1 12.Qd5+ Kh2 13.Qd6+ Kh1 14.Qc6+
Kh2 15.e3 a3 [15...Kg3 16.Qd6+ Kg4 17.Qf4+ Kh5 18.Qf5#] 16.Qd6+ Kh1 17.Qd5+ Kh2
18.Qe5+ Kh1 19.Qe4+ Kh2 20.Qf4+ Kh1 21.Qf3+ Kh2 22.Qf2+ Kh1 23.Qg1# 1-0



Pierre



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