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

Author: Vincent Lejeune

Date: 02:43:49 08/24/04

Go up one level in this thread


On August 23, 2004 at 23:49:45, Robert Hyatt wrote:

>On August 23, 2004 at 19:23:02, Vincent Lejeune wrote:
>
>>On August 23, 2004 at 17:40:15, Robert Hyatt wrote:
>>
>>>On August 23, 2004 at 15:26:05, Vincent Lejeune wrote:
>>>
>>>>On August 23, 2004 at 14:33:03, Robert Hyatt wrote:
>>>>
>>>>>On August 23, 2004 at 13:46:34, Alessandro Scotti wrote:
>>>>>
>>>>>>On August 23, 2004 at 13:17:50, Robert Hyatt wrote:
>>>>>>
>>>>>>>OK, we are at Nxh3 Kxh3 Rh6+ Kg4 g6 Qe2
>>>>>>>
>>>>>>>Crafty says draw here. as it has from the point Nxh3 was first played...
>>>>>>
>>>>>>Let me recap!
>>>>>>
>>>>>>We started from:
>>>>>>
>>>>>>6k1/1q3ppp/r7/1rp1P1n1/3p1P2/1P1R2PP/2Q4K/B4R2 b - f3 0 1
>>>>>>
>>>>>>and after Nxh3 Kxh3 Rh6+ Kg4 g6 Qe2 Pro Deo says: Rb6 (f5 gxf5+ Rxf5 Qh1...)
>>>>>>which it scores 1.65 (at depth 11 on my humble Athlon 700 MHz).
>>>>>
>>>>>
>>>>>Ok.  Continuing, Nxh3 Kxh3 Rh6+ Kg4 g6 Qe2 Rb6 f5 gxf5+ Rxf5 Qh1
>>>>>
>>>>>I play Bxd4
>>>>
>>>>Shredder 8 (2 best moves, AMD@3000+, after 10 min)
>>>>
>>>>[d]6k1/5p1p/1r5r/2p1PR2/3B2K1/1P1R2P1/4Q3/7q b - - 0 1
>>>>
>>>>Analysis by Shredder 8:
>>>>
>>>>1. µ (-0.79): 7...cxd4 8.Rf4 Thg6 9.g4 Tb4 10.Rg3 Dg1+ 11.Rh3 Th6+ 12.Th5 Dh1+
>>>>13.Rg3 Txh5 14.gxh5 Dd5 15.Rf4 Txb3
>>>>2. ³ (-0.64): 7...Thg6+ 8.Rf4 cxd4 9.g4 Dc1+ 10.Rf3 Tb7 11.Tf4 Th6 12.Rg3 Dg1+
>>>>13.Dg2 De1+ 14.Df2 Dxe5 15.Dxd4 De1+ 16.Df2
>>>
>>>
>>>Either of those looked reasonable when I was analyzing this.  Once I get my
>>>class stuff ready for tonight's class, I'll try to do some analysis since ProDeo
>>>apparently played cxd4 in response.  I had looked at the rook check or Kf4 as
>>>the two likely candidates if black took rather than checked me first..
>>
>>But the point of this line is missed sooner , see
>>http://www.talkchess.com/forums/1/message.html?383760
>>3...Rbb6 +3 and the game is over
>
>
>Maybe.  But then Pro Deo is the one that found the move and didn't play Rbb6.
>So what to conclude there?  +3 from Shredder is not always convincing.  I have
>seen +5 turn into draws many times playing on ICC.  Sometimes it is way
>optimistic also...


Sorry, I haven't pro deo installed on my machine

I analyzed a bit this line (3...Rbb6 4.f5 Rh1 5.Rdf3 h5+ 6.Kf4 Rxf1 7.Rxf1 Rxb3
8.Bxd4) and it's convincing, king is in a mating net.




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