[Retros] Retractor 2.0 now available online
ageorge at amherst.edu
Sat Apr 10 19:26:46 EDT 2021
Yes, that was the problem - thanks.
On Sat, Apr 10, 2021 at 4:23 PM Theodore Hwa <hwatheod at cs.stanford.edu>
> Make sure you use http:// and not https:// (and make sure you don't have
> browser setting that automatically changes http to https).
> On Sat, 10 Apr 2021, Alexander George wrote:
> > Hi. I keep getting the message:
> > The requested URL /~hwatheod/retractor2/retractor.html was not found on
> this server.
> > On Sat, Apr 10, 2021 at 1:56 AM Theodore Hwa <hwatheod at cs.stanford.edu>
> > Hello retro enthusiasts,
> > Retractor 2.0 is now available online as an application in your
> browser at
> > http://xenon.stanford.edu/~hwatheod/retractor2/retractor.html
> > For those not familiar, Retractor is a program for exploring retro
> > problems. It lets you setup a position and play backwards from it,
> > warns you if it detects an illegal position. It reports the
> number of
> > captures and promotions in a position. It can also solve some
> "Last N
> > moves" problems.
> > For those of you who have been around this list for a while,
> Retractor 2.0
> > is the successor of Retractor 1.0 which was a Windows application
> > developed by myself and Chad Whipkey in 1998.
> > Right now, Retractor 2.0 is pretty much a straight port of
> Retractor 1.0
> > immediate items for improvement are (1) taking promotions into
> > when counting pawn captures, and (2) a more general method for
> > of illegal retro-cages (right now, some common cases are
> > I am using the "Last Single Move" problems (types A-D) at
> > https://www.janko.at/Retros/Records/LastMove/index.htm as
> benchmarks for
> > improving Retractor. When going through those problems, I found
> that when
> > Retractor cannot solve one of them, it's usually because of (1)
> > (2).
> > If you are interested in the source code, it is available on
> github at:
> > https://github.com/hwatheod/retractor
> > Any and all feedback, comments, contributions for Retractor are
> > appreciated! You can contact me at this email address, or on the
> > page above.
> > Thanks,
> > Ted Hwa
> > _______________________________________________
> > Retros mailing list
> > Retros at janko.at
> > https://pairlist1.pair.net/mailman/listinfo/retros
> > --
> > Alexander George
> > Department of Philosophy
> > Amherst College
> > Amherst, MA 01002
> > USA
> > alexandergeorge.net
> Retros mailing list
> Retros at janko.at
Department of Philosophy
Amherst, MA 01002
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