[computer-go] Proximity to last move

[Anders Kierulf]

> I agree that "proximity to last move" is an OK place to look
> for moves to search, and I also think that I would *not* use
> it as part of an evaluation function, that is, no extra value
> for that fact.

I second that. Some statistics on the distance of a move from
the previous move to back this up:

0-1: 21%
1-1: 12%
1-2: 9%
0-2: 6%
1-3: 4%
x-y: Everything else is less than 2% each.

This is based on thousands of professional 19x19 games. Together,
this adds up to 52%, so yes, this is a good place to start looking,
but it also means that for the other half of the moves proximity
to the last move is not a good criteria.

Anders Kierulf
www.smartgo.com