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Subject: Re: Most brilliant novelty from cct7 Witchess-Arasan

Author: Anthony Cozzie

Date: 08:46:11 02/15/05

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On February 15, 2005 at 04:50:57, martin fierz wrote:

>On February 14, 2005 at 18:57:07, Arturo Ochoa wrote:
>
>>Well, if you think that Uri´s posting are not ludicrous, we are alll entering in
>>the absurd world of Uri.
>
>i wonder what your problem is arturo. if you cannot admit that a good book is
>not worth 700 points you are either an impostor or a just a fool. do you even
>know what 700 rating points difference means? that's statistically a 99-1 result
>in a 100 games, just because of a book??
>
>forget the absurd world of uri, yours is far more absurd...
>
>cheers
>  martin

I dont know about 700 points, but the advantages of a good book seem obvious,
and I don't understand why we are even having this debate.

1) Extra time on the clock (say an extra 15 minutes at CCT time controls if you
have an extra 10 moves in the book).

2) Booker (usually a strong positional player) + several engines with long think
time will + published analysis will ALWAYS play as good or better moves as the
engine.

3) With no book you will lose the last N games of the tournament guaranteed
after your opponents figure out lines where you lose.  In addition engines tend
to develop far too rapidly to put much pressure on Black when they have no book.

4) With a good book you will tend to play openings that the engine handles well.
 Example: Zappa-Pharaon.  Arturo decided that Pharaon handled the main line
well, so he played a sideline (g3).  Sure enough Pharaon plays a mistake (f6)
and gets a bad position.  Of course, Zappa botches the endgame, but you can't
blame Arturo for that :)

Anyway, I don't claim 700 points, but 100-200 seems definitely possible against
versus a poorly tuned book.

It would be very interesting to run some test matches to test these theories:
for example Gothmog+Fritz8 vs Crafty+book.bin (according to WBEC there is about
a 100 elo difference between them).  I'm confident enough even without doing it
though :)

anthony



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