[Retros] Retractor 2.0 now available online

[Alexander George]

Yes, that was the problem - thanks.

On Sat, Apr 10, 2021 at 4:23 PM Theodore Hwa <hwatheod at cs.stanford.edu>
wrote:

> Make sure you use http:// and not https:// (and make sure you don't have
> a
> browser setting that automatically changes http to https).
>
> Ted
>
> 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>
> wrote:
> >       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,
> and
> >       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
> >       to Javascript. I hope to improve its abilities in the future. The
> >       immediate items for improvement are (1) taking promotions into
> account
> >       when counting pawn captures, and (2) a more general method for
> detection
> >       of illegal retro-cages (right now, some common cases are
> hard-coded).
> >
> >       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)
> and/or
> >       (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
> github
> >       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
> https://pairlist1.pair.net/mailman/listinfo/retros
>


-- 
Alexander George
Department of Philosophy
Amherst College
Amherst, MA 01002
USA
alexandergeorge.net
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist1.pair.net/pipermail/retros/attachments/20210410/de42dc08/attachment.htm>