[computer-go] How did MoGo do it?

[Don Dailey]

I'm pretty sure I read that the MoGo team is shifting their efforts
towards 19x19 GO.   There are lot's of possibilites for research,
but Mogo already does things to constrain the board on 19x19, they
are probably just refining this stuff.

- Don


On Sun, 2007-03-04 at 19:58 -0800, Peter Drake wrote:
> Congratulations to MoGo on winning the KGS tournament held earlier  
> today:
> 
> http://www.gokgs.com/tournEntrants.jsp?sort=s&id=270
> 
> Even under borderline "blitz" conditions (18 minutes sudden death for  
> 19x19), MoGo managed to beat conventional programs like GNU Go.  
> (ManyFaces apparently had some connection/restarting glitch, so its  
> performance may not be representative.) Of course, MoGo also beat all  
> the other MC/UCT programs.
> 
> How did MoGo do it? I have three hypotheses:
> 
> 1) MoGo is completing more runs per second. How many is it doing on  
> the machine used in the tournament.
> 2) MoGo is somehow getting more out of the runs it does, using things  
> like the all-as-first heuristic.
> 3) Each of MoGo's runs is "smarter", through the use of heuristics  
> that bias the random games.
> 
> My money is on #3. In the limit, of course, a very smart program  
> could predict the outcome with one MC run for each move under  
> consideration.
> 
> Would the MoGo authors (and anyone else) care to weigh in?
> 
> Peter Drake
> http://www.lclark.edu/~drake/
> 
> 
> 
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