On 7/16/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > A few questions about Quackle's static valuations: > > 1. It appears that, except on the first move, no adjustment for the board > position is being made. (In other words, the static valuation is raw score > plus rack leave valuation.) Is that true? If so, are there plans to add board > position adjustments in the future?
Yes, at least for TWS. But the real plan is to improve simulation speed so that more people can play games against Quackle at its strongest. Defense in the static evaluator will give only very slight improvement to the simming player. > 2. It seems that rack leaves are evaluated without regard to what remains in > the bag. If so, are there plans to add adjustments in the future? This is something I've thought of doing and I have a good idea of how to do it. > 3. Once the game reaches a pure endgame, the static valuations change > drastically, and almost every leave seems to have an extreme negative value. > Is there a reason for that? The static evaluations don't really have any absolute meaning. The idea is just to compare the plays to each other in the context of that turn, and what you're seeing here are the internals of the very stupid endgame "solver" (not the one used by the Endgame player or the upcoming Bogowin player) that doesn't do anything besides penalize non-outplays. In the next version or the next after that, the kibitzer will show the real "lines" and spreads of the endgames for each play. > 4. If there are more than one move tied for first place in static evaluation, > does Quackle choose randomly among them? Does it choose moves any differently > within a sim than within a game? If there's a tie, the first move it finds of the highest value is the one it plays. So there's bias toward horizontal plays in the top left corner of the board and the early part of the alphabet. Unideal, especially for my playability values, but changing this isn't a high priority. John O'Laughlin ------------------------ Yahoo! Groups Sponsor --------------------~--> Check out the new improvements in Yahoo! Groups email. http://us.click.yahoo.com/6pRQfA/fOaOAA/yQLSAA/0liolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/quackle/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
