Author: Paul
Date: 12:45:13 10/26/01
Go up one level in this thread
On October 26, 2001 at 13:53:01, Heiner Marxen wrote:
>On October 26, 2001 at 12:54:50, Dieter Buerssner wrote:
>
>>On October 26, 2001 at 02:07:30, Angrim wrote:
>>
>>>Now how about trying to prove the mate for that position that so
>>>many people were searching to find the best move?
>>
>>>[D]3r1rk1/2n1nppp/1pp1p3/p2qP2Q/P1RPN3/2R5/1P2NPPP/6K1 w - -
>>
>>Yace on a slow computer and probably running in the background (I have found
>>this in the log files again - I cannot remember it);
>>
>>1620560609 2:12:40 Mat14 16t 1. Nf6+ gxf6 2. Rg3+ Kh8 3. Qh6 Ng6 4. Rh3
>> Qxg2+ 5. Kxg2 Nh4+ 6. Rxh4 Rg8+ 7. Kh1 Rg7 8.
>> exf6 Rdg8 9. Rc3 Ne8 10. Rch3 Rg1+ 11. Nxg1
>> Rxg1+ 12. Kxg1 Kg8 13. Rg3+ Kh8 14. Qxh7# {1741}
>>
>>Regards,
>>Dieter
>
>That can be shortened by one move. After 9...Ne8 Chest finds a mate in 4:
>
> Rg3 Nxf6 Qxf6 b5 Rxh7+ Kxh7 Rh3#
> c5 Rxh7+ Kxh7 Rh3#
> e5 Rxh7+ Kxh7 Rh3#
> h5 Rxh5#
> h6 Rxh6#
> -*- Qxg7#
> Nc7 fxg7+ Rxg7 Qxg7#
> Nd6 fxg7+ Rxg7 Qxg7#
> Rf8 fxg7+ Kg8 gxf8Q#
> Nxg7 Qxh7#
> Rg4 Qxh7#
> Rg5 Qxh7#
> Rg6 Qxh7#
> Rxg3 Qxh7#
> -*- Rxg7 Nxf6 Rxh7+ Nxh7 Qxh7#
> Rxg7 fxg7+ =*= Qxh7#
> Nxg7 Qxh7#
> Rf8 Qxh7#
> -*- Rxh7#
>
>Still, the original position is too deep for Chest.
>
>Cheers,
>Heiner
Hi mate(s), ;)
Yes, I think it's a mate in 13 ... but the original mate in 15 line of
Chessmaster is not correct IMHO:
1. Nf6+ gxf6 2. Rg3+ Kh8 3. Qh6 Ng6 4. Rh3 Nh4? {Qxg2+ Kxg2 Nf4+ Nxf4 Rg8+ Kf1
Rg7 exf6 Rdg8 fxg7+ Rxg7 Nh5 Ne8 Nxg7 Nf6 Ne8 e5 13. Qg7#} 5. Qxf6+ Kg8 6. Rxh4
Rfe8 7. Qh6 Qe4 8. Rxe4 f5 9. exf6ep Re7 10. fxe7? {Rg4+ Kh8 Rg7 Rxg7 12. Qxg7#}
Rc8 11. Rg4+ Kf7 12. Qxh7+ Ke8 13. Rg8+ Kd7 14. e8=Q+ Kd6 15. Qxc6#
The line contains the suboptimal black move 4... Nh4, which I don't think is
allowed in a mate solution (because it leads to a mate in 12). It was posted in
this message: http://www.icdchess.com/forums/1/message.shtml?193984
I'm puzzled ... :(
Groetjes,
Paul
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