You are very welcome! I'm glad to be of assistance. Yes, you may use my name
-- Danny A Jones. Thanks!
My full solver lists the solutions for the deal(s) it processes. My range
solver produces just the '#' line (similar to FcPro26) for each deal. This
line includes number of moves and tree nodes used. For unsolvable deals, I
substitute an '_at_' for the '#' ... and the number of moves is zero. For
intractable deals, I do the same ... and the number of nodes is >= 10M.
I have a statistical program that scans the output from my range solver and
lists unsolvable and intractable deals as part of its output. That's where I
obtained the results I reported.
So, to answer your question; yes, I have a list of the unsolvable 7x4 deals.
I have included the unsolvable (and intractables) deals at the very end of
this message.
The asterisk meant 'times'. My 7x4 range solver took 22 times as long to
execute as my 8x4 range solver for the first 32K MS deals. When I customized
the 7x4 range solver to skip the 3 intractable deals, it took a little over
8 times as long to execute as my 8x4 range solver.
I'll tackle your 7x3 and 6x4 scenarios soon. The 9x4 scenario will take a
little longer because of the way my solver identifies columns internally.
Still, it's doable.
Regards, DAJ
>From: Michael Keller <wgreview_at_yahoo.com>
>Reply-To: fc-solve-discuss_at_yahoogroups.com
>To: fc-solve-discuss_at_yahoogroups.com
>CC: fomalhaut_at_earthlink.net
>Subject: RE: Solvers with more or less than eight columns
>Date: Sat, 1 Jan 2005 01:27:06 -0800 (PST)
>
>
>Thanks very much for such a quick response! This
>is exactly what my correspondent wanted to know.
>I would like to mention these results in the
>FreeCell FAQ if you wouldn't mind (giving you
>full credit of course).
>
> > 7x4 Deals Solved: 31,641
> > 7x4 Deals Unsolvable: 356
>
>Does your program maintain a list of the deals
>which are unsolvable?
>
> > 7x4 Deals Intractable: 3 -- #15131, #16699, #18929
> >
> > 7x4 Execution Time: 22* solving as 8x4 deals
> > (partly because of
> > Intractables)
>
>Not sure what the asterisk means -- was this
>22 seconds, minutes, hours?
>
>Thanks again for the results. Of course I'd
>be delighted to hear of any other combinations
>of columns/freecells (I'd suggest 7x3, 6x4, or
>9x4 as the next to try).
>
>Michael Keller
>FreeCell FAQ
>
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Received on Sat Jan 01 2005 - 06:07:02 IST