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Subject: Re: ECM98 errata feedback

Author: Amir Ban

Date: 03:15:35 01/20/98

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On January 20, 1998 at 05:20:45, Howard Exner wrote:

>Reply to Amir Ban's ECM98 Errata postings.
>
>Here I'll include Book lines that may clarify certain
>unresolved positions. I'll also include a description called "faulty
>defence" as some "best moves" were only good because of a poor
>defence (I won't post all the poor moves as this would become tedious
>but would post if some were curious). No reply to Amir's analysis
>will mean that the Book lines offer no help(in general I'm finding the
>majority of Junior's analysis on target).
>
>FD=faulty defence
>
>ECM98
>
>11 - Nxg4 is already established here as crushing.
>28 - FD-The book line plays fxg5? instead of f5!(will need to
>      refer to Amir's postings on Junior's analysis)
>29 - Rebel likes Rf4 so there are 3 winning lines here.
>68 - FD 1.Bd3 Qxc3 2.Rh4 Qc5 3.Bxf6 Bxf6? (gxf6!)
>123 - big piece exchanges to a won ending. Book: 1.Nxd6 Rxf3 2.Nxe8 Bxb2
>      3.Qxb2 Kg8 4.Rd8! Rf8 5.Rxc8 Rxe8 6.Rxe8 Qxe8 7.Qe2 Nf6 8.Qxe8
>Nxe8 9.Bxc6!

This almost works ! But black can play 3... Nc3! Then if 4.Nd6 black has
a forced draw and 4.Rd8 is unclear. I will stick with Bxe5, which is not
only better but simpler.


>133 - Rxe4 is best for this position. Book 1.Rxe4 dxe4 2.Nxe4 Qe1 3.Kh2
>Qxc1 4.Nf6+ +-
>137 - Rc3 is also good
>142  - Book: 1. ..  d3+ 2.Kh1 Qf2 3.Qxd3 Bxe4! 4.fxe4 Qxf1 5.Qxf1 Ra8
>0-1 Very nice.

Yes, very nice. It's interesting to note how the combined computers of
the world can be outdone by an over-the-board tactical move.


>148 - FD -  Book: 1. .. Rfc8 2.fxe5 Nf4 3. Now the book gives two losing
>defences,
>         Bd3? and exd6? but Bf3  looks like it holds on.

Yes, and the small plus scores I saw yesterday have gone back to 0. I
change my opinion here from "probably right" to "drop it".

Amir



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