[computer-go] cotsen open will be on september 20-21'st

2008-07-11 Thread Ray Tayek
The dates for the Cotsen Go Tournament have been decided. The tournament will be held on September 20 and 21 at the Tom Bradley International Hall on the UCLA campus. This is the same location where the Toyota Denso North American Oza was held this past January. thanks --- vice-chair

Re: [computer-go] cotsen open will be on september 20-21'st

2008-07-11 Thread Nick Wedd
In message [EMAIL PROTECTED], Ray Tayek [EMAIL PROTECTED] writes The dates for the Cotsen Go Tournament have been decided. The tournament will be held on September 20 and 21 at the Tom Bradley International Hall on the UCLA campus. This is the same location where the Toyota Denso North

Re: [computer-go] Graph history interaction

2008-07-11 Thread John Fan
I had the same issue in UCT tree. What I did is to check if the current node is a ko move, then compare it with its latest 6 ancestors. If any match is found, then consider the move is a loss. So it cuts off the infinite loop. On Fri, Jul 11, 2008 at 12:08 PM, Peter Drake [EMAIL PROTECTED]

Re: [computer-go] Graph history interaction

2008-07-11 Thread Jason House
On Jul 11, 2008, at 12:08 PM, Peter Drake [EMAIL PROTECTED] wrote: My sense is that most programs ignore superko except for checking right before a real move (as opposed to a playout move) is played. That was my preference too, but... The way out of the infinite loop is to set a maximum

Re: [computer-go] Graph history interaction

2008-07-11 Thread Peter Drake
Since the tree is of finite size, you will eventually get to the nondeterministic part of the playout. The moves here will probably finish the playout (one way or another) before hitting the maximum move threshold, so the playout will not be aborted but will update the tree. On Jul 11,

Re: [computer-go] Graph history interaction

2008-07-11 Thread Sanghyeon Seo
2008/7/12 Jason House [EMAIL PROTECTED]: I tracked down a rare hang/crash in my bot and I'm curious how others handle this. I use simple ko state as part of my hash lookup, but I don't use super ko. I can't store the whole graph history because then there would be no transpositions at all. I

Re: [computer-go] Graph history interaction

2008-07-11 Thread Peter Drake
Do you always check it? Would it be faster to hold off on this check until you realize that you're in a cycle? On Jul 11, 2008, at 12:06 PM, John Fan wrote: I guess you missed my message. I solved this by comparing the current node with its ancestors in the path. On each walking down the