Author: Georg v. Zimmermann
Date: 07:43:02 09/24/01
Go up one level in this thread
Hi ! I searched in the last few pages but can't find your original posting anymore, can u repost or send to d2d4@d2d4.de ? Because I don't understand how the pretty picture relates to a search tree. How will I store the search tree in pgn ? Will I be able to add more info like which extensions I did, what my alpha and beta values where, why this tree was razored, whether the move came from the hash or was ordered the first ? Visualizing the search tree helps a whole lot in finding bugs etc, thanks for releasing this ! Georg On September 23, 2001 at 18:49:33, Rém0i Coulom wrote: >Hi all, > >I wrote an article a few days ago about this idea. I have implemented a small >utility and it starts to give great results. I thought you'd like to take a look >at some screenshots. > >The first one is the visualization of a search tree from the starting position. >Colors indicate fail high/low and bad move ordering (searching green areas could >have been avoided with a better move ordering). Note that it is not The Crazy >Bishop that generated such a ugly tree but my "simple" chess engine. >http://remi.coulom.free.fr/treemap.png > >The second one is a view of an opening book: >http://remi.coulom.free.fr/bookmap.png > >I really love this tool. It makes it a pleasure to browse huge search trees. One >of the other nice things it can do is a graphical diff between two search trees. >And I am sure it can have tons of uses that I cannot imagine yet. > >I think I will release this visualization tool whithin a few days. It can read >PGN files. Flags such as "fail high", "hash table move", ... can be indicated in >the NAG. The SAN notation for the null move is "null". This way, any program >than can produce a PGN file of its search tree will be able to have it >visualized like above. The function to diff two search trees is also built-in. > >Rémi
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.