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Subject: Re: What does your engine see???

Author: Vincent Lejeune

Date: 12:00:23 08/23/04

Go up one level in this thread


On August 23, 2004 at 13:17:50, Robert Hyatt wrote:

>On August 23, 2004 at 12:50:39, Uri Blass wrote:
>
>>On August 23, 2004 at 12:44:32, Robert Hyatt wrote:
>>
>>>On August 23, 2004 at 12:04:00, Alessandro Scotti wrote:
>>>
>>>>On August 23, 2004 at 11:41:57, Stan Arts wrote:
>>>>
>>>>>On August 23, 2004 at 11:00:50, Alessandro Scotti wrote:
>>>>>
>>>>>>On August 23, 2004 at 10:19:54, Uri Blass wrote:
>>>>>>
>>>>>>>After Rh6+ Kg4 f5+ exf6 I see no mate but only draw.
>>>>>>>Maybe you have a bug in the enpassant code and you do not consider exf6
>>>>>>
>>>>>>In fact, probably (*) the best continuation after Rh6+ Kg4 is Qd7+.
>>>>>>
>>>>>>(*) That is, my computer thinks... :-)
>>>>>
>>>>>Atleast there's no easy mate in sight after Nxh3 Kxh3 Rh6+.
>>>>>Neurosis also thinks it's a draw at most for black.
>>>>
>>>>So far, the only engine I have found that sees Nxh3 winning easily is Pro Deo.
>>>>(My engine is one of many that wants to play Ne6.) However, I have tried to play
>>>>several lines with white against Pro Deo and in all cases it actually did manage
>>>>to win easily! :-)
>>>
>>>
>>>
>>>
>>>I don't see it winning easily.
>>>
>>>We can test it easily enough.  I play Kxh3.  Your (pro deo's) move...
>>>
>>>If Rh6+ I play Kg4.
>>
>>ProDeo suggests Rh6+ Kg4 g6
>>
>>Uri
>
>
>OK, we are at Nxh3 Kxh3 Rh6+ Kg4 g6 Qe2
>
>Crafty says draw here. as it has from the point Nxh3 was first played...

I would like to take back 1 move :

after Nxh3 Kxh3 Rh6+ Kg4
[d]6k1/1q3ppp/7r/1rp1P3/3p1PK1/1P1R2P1/2Q5/B4R2 b - - 0 3
Shredder 8 (2 best moves, AMD@3000+, after 10 min)

Analysis by Shredder 8:

1. -+ (-3.17): 3...Tbb6 4.f5 Th1 5.Tdf3 h5+ 6.Rf4 Txf1 7.Txf1 Txb3 8.Fxd4 cxd4
9.Dd1 d3 10.Rg5 De7+ 11.Rxh5 Dxe5 12.Rg4 Tb4+ 13.Rh3 Dd5
2. ยต (-0.77): 3...g6 4.De2 Th1 5.f5 Txf1 6.Dxf1 Txb3 7.Txb3 Dxb3 8.Rh3 Dd5 9.Fb2
Dxe5 10.fxg6 hxg6 11.Dd3




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