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Subject: Re: Diep-Deep Sjeng Continued from Prev. Page

Author: Arturo Ochoa

Date: 20:35:04 01/01/04

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On January 01, 2004 at 18:15:19, Stephen Ham wrote:

>On January 01, 2004 at 17:05:02, Peter Berger wrote:
>
>>On January 01, 2004 at 16:57:10, Stephen Ham wrote:
>>
>>>On December 30, 2003 at 07:28:55, Lex Loep wrote:
>>>
>>>>Perhaps a bit late but still nice reading, article by Gian-Carlo Pascutto.
>>>>
>>>>http://www.lokasoft.nl/deep_sjeng_in_wccc2003.html
>>>>
>>>>Lex
>>>
>>>"Up against the 512 processor monster! Deep Sjeng played well and got a nice
>>>attack going, but in the end white also got a passed a-pawn, and the game was
>>>drawn. A nice example of the simple attacking chess Deep Sjeng excels at.
>>>"
>>>
>>>The comment is not really exact. After 12. ... c6!, good book move, Diep was out
>>>of Book. If Diep had continued with 13. Rg1 instead of 13. Qb3?, the result
>>>would have been another thing. However, Sjeng was not able to exploit the wasted
>>>time by Diep from moves 13 to 17. On fact, 13. Qb3? begins a short wrong plan in
>>>the queen side when the attack is in the king side.
>>>
>>>At the end, several inaccuracies on the Sjeng behalf let Diep to save the game.
>>>
>>>Regards, Arturo Ochoa M.
>>>
>>>
>>>Dear Arturo,
>>>
>>>I think you have the board set up incorrectly. 13 Rg1 is impossible since
>>>White's previous move was 12 O-O.
>>
>>Hi Steve,
>>
>>I think Arturo referred to 13. Kh1 followed by 14. Rg1 most probably. Looks nice
>>at first sight, but I haven't looked closely.
>>
>>Peter
>
>Hi Peter,
>
>Excellent point, Peter! I overlooked this tactical rejoinder (typical!). ;-)
>
>Yes, 13 Kh1 seems to make more sense than my 13 a3 line. Still, after some
>"natural" moves, such as 13...Nd5 14 Nxd5 cxd5 15 Bd3 g6, then Black can
>re-route his offside Knight back into the game via ...Nh5-g7-f5.
>

As Peter pointed out correctly. The move is Kh1! Your plan in the queen side is
wrong. Look the opened column in g and analyze why Kh1 was the correct way.

>Nonetheless, to the point that you made, Peter, an immediate 14 Rg1! leads to a
>very complex and tactically rich position, that's too much for my little brain
>to fathom. Looking at the position in static terms (often unwise in dynamic
>positions, such as this), I favor White with a slight edge, due to the nice
>g-file and White's Queen being on the b1-h7 diagonal, coupled with the
>possibility of Be3-h6. All the threats seem to come from White and Black will
>have to "hunker down" to survive. For example, the "natural" looking 14...Nxe3??
>15 fxe3 probably wins for White. So at first glance, Black will probably have to
>batten down the hatches with something like 14...f5 (this gives Black options of
>...Qh4, or ...Nhf4, or...f5-f4).
>
>At this point, being tactically challenged, I'll leave this tactical position to
>the CCC readers and their chess engines to sort this position out. This may make
>a fun test position, to see which engine best "solves" this position. Maybe
>something like 15 Bg5!? (15 Bh6!?) Be7 16 Qd2 comes next. Regardless, I'd better
>stop now for fear of blundering embarrassingly in public.
>

I only missed the K by R. This was my original idea. Hopefully, this wont
generate new misunderstandings.

Regards, Arturo Ochoa M.


>Nice find, Peter and Arturo!
>
>All the best,
>
>Stephen



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