Message #4055

From: Roice <roice3@gmail.com>
Subject: Re: [MC4D] MagicTile Solving
Date: Wed, 04 Jul 2018 17:38:45 -0500

Hi Ed,

This is amazing, and I’m blown away that you (and Michael and Nan and others) have taken on so many of the MagicTile puzzles.

Even though I’ll never come close to such a solve, it’s fulfilling to live vicariously through you. Thanks for reporting your successes!

Best,
Roice

> On Jun 30, 2018, at 4:33 PM, ‘Eduard Baumann’ ed.baumann@bluewin.ch [4D_Cubing] <4D_Cubing@yahoogroups.com> wrote:
>
>
>
> Hi all,
>
> I wanted solve a **BIG** MagicTile puzzle. For this I tackled a puzzle which Michael Gottlieb hasn’t yet solved.
> I have chosen MT_hyp_{4,7}_42_R10-9_e100 with 42 colors and 714 pieces. I name them faces, edgefaces, cornerfaces, edges and corners.
> My solves has 172’914 moves.
>
> I did a first try with 90’000 moves (14 days elapsed time) and was stopped with a difficult parity situation. See illustration.
>
> <e100 parity.JPG>
>
> Can anyone of you find a sequence to solve this parity?
>
> I simply restarted a second try and was lucky enough to not encounter the parity again. This puzzle is not only lengthy but is also very interesting (with crossing orbits).
> My elapsed time for the sucessfull try was 18 days.
>
> By the way: during this month the 42 MT colors got very familiar to me. White, blue, green, … but also darkGold, minth, cadet, cornblue, chocolate, tan, khaki, teal, …
>
> Happy puzzling!
>
> Ed
>
>
>