On Nov 9, 2009, at 2:39 AM, Nick Wedd wrote:

On a broader level - it depends what you are trying to do. If you want Orego to play well in the long term, getting it to play good moves (what a professional would acknowledge as good) in the josekis must be a good thing. But there is the more difficult question of how to get the josekis in the four corners to relate to one another. A move can be good in the context of the local corner but bad in the context of the whole game. Dealing with this is, I think, difficult.

True, but at the moment we're just interested in getting Orego to play ANY joseki, i.e., a reasonable move in some corner, rather than a disastrous tenuki. Finding the "right" joseki will be future work.

(Orego also has a small fuseki book, which we're working to expand.)

On an intermediate level, a joseki that is good for a professional is not necessarily so good for a kyu player. Professionals are better than weak players at using thickness, whereas solid territory is worth much the same to both. So if your objective is for Orego to become 1-dan, you should tend to prefer josekis which give low solid territorial positions, leaving the hard-to-use outer influence for its opponents.

Good advice!

We have, of course, linked goals: we want to make the program stronger, but we also want to discover techniques that might be relevant to problems other than Go; thus the focus on automatically extracting joseki.

Peter Drake
http://www.lclark.edu/~drake/

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