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Subject: Re: Highest eval nad no win?

Author: Robert Hyatt

Date: 10:02:59 03/07/01

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On March 07, 2001 at 11:56:35, Ed Panek wrote:

> Just a question to everyone:
> What is the highest positive evaluation you have seen a program display and not
>win  ...and what is the lowest eval you have seen  a program display and not
>lose?
>
>
>Me personally is somewhere around +7  with tiger aginst Hiarcs732 with Tb.
>Hiarcs was able to salvage the draw in endgame. Tiger at the very end saw around
>+3.5 or so
>
>
>Ed


My response would be pretty similar.  I have seen evals beyond +5 end up in
draws, due to impossibly deep perpetuals.  These are _very_ rare (I don't
recall more than a couple of them in all the games I have watched.)

I have seen crafty win games when the opponent overlooked a deep mate threat
or tactical win (this usually happens against human GM players).  I watched a
game last night where it got to -6.5, but ended up drawing a GM on ICC.

Of the two cases, I more often (against humans) see losses turn into draws
and draws turn into wins, rather than the other way around.  But it will
definitely overlook something from time to time and go from +4 to 0 to -3 or
something...

Bullet games are _notorious_ for seeing wild eval swings, because the search
depths are so shallow compared to 12-14 plies in normal 40 move in 2 hour
games.



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