I tried a few games against Mogo 9x9 on KGS, and it's not professional strength, but it is very strong. When I played fast when I was tired it beat me every time, and when I made a more careful try, I beat it, but it wasn't easy. I'm AGA 3 Dan, KGS 2 kyu, so it seems to be about my strength or a little stronger. It's very strange to usually lose by 0.5 point, but win by capturing every stone. I don't think I could win even one game in 100 against a professional player at this time limit. David
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sylvain Gelly Sent: Wednesday, April 04, 2007 1:52 AM To: terry mcintyre; computer-go Subject: Re: Re:[computer-go] MoGo Hello Terry, Sylvain, Were you aware of this challenge from the American Go Association? The following is from the latest AGA newsletter; you can send corrections or replies to [EMAIL PROTECTED] Yes I was aware, Roy Laird asked me to put MoGo on KGS to play these games, and it is what I did. Of course as experts, you should have noticed errors on this newsletter, as e.g. MoGo developed by the inventors of UCT in hungary :-). You should also know that we never claimed that "MoGo plays 9x9 go near the level of a professional go player", which is of course false, and even if it was true should ask for many many experiments, and we would have never say that. These games are in some extends interesting, especially for part of you who can understand them. I can't, so the best I can do is count, and there are so few to count ;-). To answer peigang, the 10 minutes is here because players on KGS usually don't want to wait, and want not too slow games. For the komi, it may be right that MoGo wins more often with white than black, I don't know. Sylvain GO ONLINE: MoGo -- No-Go, So-So or Uh-Oh? Go has been called "The fruit fly of IT", and for a good reason -- although software engineers have created programs that can defeat the strongest chess players, the strongest go programs are routinely defeated by talented children. In fact, go is the lone holdout, the only classic game that has not yet been "solved" (so to speak) for the computer. If you wonder why, the Wikipedia article on computer go <http://w3.listlynx.com/l.php?m=1052&s=451912&l=aHR0cDovL2VuLndpa2lwZWRpYS5v cmcvd2lraS9Db21wdXRlcl9nbw%3D%3D> is a good place to start. One way to simplify the problem is to work with a smaller board, an approach followed by Levente Kocsis and Csaba Szepesvari, who are working together at the Hungarian Academy of Science on a 9x9 program called MoGo. Their recent claim that MoGo plays 9x9 go "near the level of a professional go player made international news <http://w3.listlynx.com/l.php?m=1052&s=451912&l=aHR0cDovL2FiY25ld3MuZ28uY29t L1VTL3dpcmVTdG9yeT9pZD0yODkxNjc5> so we decided to investigate. Sylvain Gelly, a contributor to the program, clarified the "one-armed bandit strategy," a variation of the ancient Chinese proverb "Rich men don't pick fights." Gelly told the EJ that "MoGo tries to maximize its winning probability. When behind, MoGo will play 'strange' moves to try to catch up, and when ahead, it will prefer safe moves which secure victory instead of keeping score. Usually it loses points when ahead, trading profit for safety, aiming to win by +0.5." To learn more see the Sensei's Library MoGo <http://w3.listlynx.com/l.php?m=1052&s=451912&l=aHR0cDovL3NlbnNlaXMueG1wLm5l dC8%2FTW9Hbw%3D%3D> page. MoGo has played extensively <http://w3.listlynx.com/l.php?m=1052&s=451912&l=aHR0cDovL3d3dy5nb2tncy5jb20v Z2FtZUFyY2hpdmVzLmpzcD91c2VyPW1vZ29ib3QmYW1wO3k9MjAwNyZhbXA7bT0x> on the Internet but evidence that it plays beyond the mid-kyu level is not compelling, so we're going to put MoGo to the test. Philip Waldron -- a solid 6-dan with a current AGA rating of 6.47 who has reviewed go software for the EJ -- will play a best-of-seven series against MoGo in the computer go room on KGS. Game times will not be announced in advance, and times will vary to eliminate the possibility of human interference on the MoGo side. The results, and possibly a few of the games, will appear in a future EJ, so stay tuned! - Roy Laird _____ It's here! Your new message! Get new email alerts <http://us.rd.yahoo.com/evt=49938/*http://tools.search.yahoo.com/toolbar/fea tures/mail/> with the free Yahoo! Toolbar.
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