Re: Advice on evaluation

[David Fotland <fotland@xxxxxxxxxxxxxxx>]

Thanks.  I think Goemate only uses a single value for group
strength, right?  The score doesn't change when the color to
move changes.  One of the things that impresses me about Goemate
is that its evaluation is so stable from move to move.

As far as the one point jump, sometimes it can be cut.  The issue
is how conservative to evaluate it.  For example:


  + + + + + + + 
  + + + O O O +
  + + O + @ + +
  @ + + + @ + +
  @ + O + @ + +
  @ + + + @ + +
  @ + O + @ + +
  @ + + + @ + +
  + + O + + + +

Surely these one point jumps can be cut.  The question is the thickness
of the surrounding position.  Many Faces is a little to easy on cutting
one point jumps, so often it wedges into a one point jump then finds out 
a move later that it was a bad move and abandons the stone.  But sometimes
it cuts of some stones and gains something.

David

>
>   I have another advice to David Fotland.  I know that MFGO treats single
>jump as breakable.  I heard a comment by David last year that the upper
>white group like the following figure is estimated dead, because there are
>many break-points at the b's, then the upper white group cannot be linked to
>the downward group.  I think a single jump may be better treated as
>unbreakable, so that all the white stones in the following figure is in one
>group.
>
>....................
>............X...OOX.
>...............O.X..
>............X..b..X.
>...............O....
>............X..b.X..
>...............O....
>............X..b....
>...............O.X..
>..............O.....
>.............O...X..
>....................
>....................
>...
>
>Chen Zhixing
>www.wulu.com
>
>
>