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Subject: Re: Sixteen EPD rows that need a good pounding! [Soszynski 80 test set]

Author: Dann Corbit

Date: 18:43:22 03/17/00

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On March 17, 2000 at 21:31:38, Dave Gomboc wrote:
>On March 17, 2000 at 21:03:40, Ernst A. Heinz wrote:
>>Hi Dann,
>>
>>>In order to create an accurate tactical suite, I would like to have these rows
>>>crunched by alternative software tools.  The current analysis does not get "the
>>>right answer" so the question is, will other programs see it?
>>
>>Most of the positions you posted do *not* seem to be tactical but
>>rather positional in nature (e.g. "Soszynski 80 #13" is actually
>>from the positional subset of LCT-II).
>>
>>>[D]r1r3k1/5p2/p3p1p1/b6p/Pp2N3/1P2P3/5PPP/2R1K2R w K - acd 18; acn 1259897193;
>>>ce -32; pv O-O Bd8 Rfd1 Be7 Kf1 Kf8 Ke1 f5 Ng3 Rc3 Rb1 Kf7 Ne2 Rc5 Rbc1 Rac8
>>>Rxc5 Bxc5 Nd4; pm O-O; bm Ke2; id "Soszynski 80 #8";
>>
>>Positional -- "DarkThought WCCC'99" never chooses 0-0 as best. It likes
>>Ke2 from the beginning and even switches to Kd2 in iteration #15.
>
>Which brings the question to mind: why would anyone want their king on g1
>instead of d2 or e2 here?  Playing O-O looks like a serious mistake to me.

I'll bet it's a somewhat misapplied king safety calculation.  Still three loose
pieces on the board and castling looks sensible if you can't see the board (I
know that sounds silly, but I bet most king safety calculations just look at
game phase).  In any case, it's not a big loss, because you can always pop the
king whenever you like by opening the can with g3.

I think e2 is better, but it's very marginally better.  You have to do something
to protect the rook, and it's about time to bring the king into the fray.  But I
remain unconvinced that one move is vastly superior to the other.  Of course,
I'm not a great player.

By the way, I'm looking over that document you sent me and I will suggest some
changes.



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