Author: Ross Boyd
Date: 06:03:26 08/14/04
Go up one level in this thread
On August 13, 2004 at 08:30:16, Pham Hong Nguyen wrote: >On August 12, 2004 at 18:18:40, Ross Boyd wrote: > >>On August 12, 2004 at 06:58:36, Pham Hong Nguyen wrote: >> >>>>Be careful with R=3. It has the potential to make your engine go blind. I lost >>> >>>I gess you did not read about Verified Null-moving yet ;) >>>Pham >> >>I implemented it more than a year ago. It worked in some positions... not in >>others... so I removed it. So much has changed in my engine since then it could >>work if I tried it again. >> >>What I meant to say was "Be careful with pure R=3." >> >>Ross > >Sorry, but I think Verified Null-moving is designed for working with R=3 only >because of attraction of getting fewer nodes. The aim of verification to reduece >the risk of R=3. Any other value of R will make this algorithm become useless. > >Pham Yes, I read the paper by Omid... and used R=3 but it just didn't pay off for me at the time. Probably it interacted with something else I wasn't doing properly.... I will have another crack at Verified NM Pruning some time in the near future. Ross
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.