Yes, it wouldn't be best for building a strong player unless the program assumed a certain komi. But then it gives up if it cannot achieve that komi.
Which reminds me - when you run test suites, you have this problem. I have to doctor up problems so that the correct move gives a win and all incorrect choices lose. Or you can specify KOMI for each individual problem. 7x7 is more like Chess in the branching factor, but it's still a much harder problem than Chess. In the beginning, it's worse than most chess positions. If anyone is interesting in trying 7x7 and has a linux machine available, perhaps a spare home computer with a resolvable inet address and web server, we can put up a version of CGOS for 7x7. Just let me know. - Don On Tue, 2006-10-10 at 13:28 -0400, Chris Fant wrote: > But then you have to change your code to favor average terrirory over win > ratio. > > > On 10/10/06, Don Dailey <[EMAIL PROTECTED]> wrote: > > A good way to structure 7x7 matches, is that you forget komi, and just > > play 1 game as white and 1 games as black, adding up the territory in > > both games. Then you don't have to worry about which komi is correct. > > > > - Don > > > > > > On Tue, 2006-10-10 at 13:02 -0400, House, Jason J. wrote: > > > I think Crazy Stone did very well on 7x7 with an opening book. If you > > > go down that road, I recommend that you consider using the attached > > > file to populate the database. > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] On Behalf Of > > > [EMAIL PROTECTED] > > > Sent: Tuesday, October 10, 2006 11:48 AM > > > To: [EMAIL PROTECTED] > > > Subject: [computer-go] Computer go in 7x7 > > > > > > Hello all, > > > > > > I am wondering about Go in 7x7. I know that the game in this size has > > > no real > > > interest in itself. However, I think that the level of computer go > > > programs > > > is much higher in 7x7 than in 9x9, and it could be interesting to see > > > until > > > where we can go in 7x7. > > > > > > There was a discussion on this list recently about the level of > > > CrazyStone in > > > 7x7, and also (perhaps not on this list, only on kgs I don't remember) > > > of > > > Magnus saying that the level of Valkyria was very good on 7x7. I am > > > wondering > > > if we can make a player that beats almost all humans in 7x7? > > > > > > I have tried to put MoGo on kgs in 7x7, but it looses quite a lot of > > > games. > > > Ok, I have put only 5 minutes time, so it plays quite fast, and perhaps > > > could > > > be better with more time, but it is clearly far from a really good > > > player. > > > > > > I have implemented a meta-UCT (that means that instead of playing a > > > random > > > game after the tree, you make MoGo playing against itself) to generate > > > an > > > opening database. I have made this meta-UCT 100% parallel for a cluster > > > (as > > > the evaluation is now so costly, parallelisation is trivial). I can > > > dedicate > > > quite a lot of computers to this task as I have access to a cluster. > > > So I wonder if you think that this meta-UCT can be effective to > > > generate a > > > good opening database, and this way manage to have a really good > > > computer Go > > > player in 7x7 ? > > > Perhaps usual UCT exploits too much for this task, because my > > > experiments show > > > that the beginning of the tree is quite narrow. Here are the first > > > moves: D4 > > > D5 E5 C4 D3 C5. I have no idea if it is very stupid or normal. > > > > > > Remi was saying that the right komi for 7x7 is 9, but I have made my > > > experiments with komi 7.5, and the meta-UCT predicts that black is > > > almost > > > always loosing. Is it because the blacks moves are very bad? > > > > > > To conclude, I think this question of 7x7 is interesting because we can > > > > > > perhaps have a very good player. What do you think? If you have good > > > ideas to > > > make the meta-UCT generate a good database, I can dedicate a lot of CPU > > > to > > > this task, and would interested to see what happen. > > > > > > Sylvain > > > > > > _______________________________________________ > > > computer-go mailing list > > > [EMAIL PROTECTED] > > > http://www.computer-go.org/mailman/listinfo/computer-go/ > > > _______________________________________________ > > > computer-go mailing list > > > [EMAIL PROTECTED] > > > http://www.computer-go.org/mailman/listinfo/computer-go/ > > > > _______________________________________________ > > computer-go mailing list > > [EMAIL PROTECTED] > > http://www.computer-go.org/mailman/listinfo/computer-go/ > > > _______________________________________________ > computer-go mailing list > [EMAIL PROTECTED] > http://www.computer-go.org/mailman/listinfo/computer-go/ _______________________________________________ computer-go mailing list [EMAIL PROTECTED] http://www.computer-go.org/mailman/listinfo/computer-go/
