From:

Subject:

Date: Tue, 4 Nov 86 17:06 EST

From: David C. Plummer <DCP@QUABBIN.SCRC.Symbolics.COM>Rubik's Magic is available at "Games people play" near Harvard Square

for a little under $15.

As usual, Carol Monica is charging unreasonable prices. Boycott this

moderately obnoxious woman and buy your Magic from Zayre or Bradlee's at

about $7-8.

It's a good puzzle for playing with and relieving the fidgets.

Mathematically it isn't very interesting, nor are there any "pretty

patterns" other than solved1 and solved2.

The "pretty patterns" are more sculptural than geometrical. Can you

make a cube?

Mathematically, there are a couple of interesting points. There are

sixteen achievable 2x4 configurations, linked by a nice little rosette

of generators.

Unsolved stumper: The pattern

XXX

X X

XXX

appears unreachable, but we haven't been able to prove it. Can someone

come up with a proof? (Or -- hope against hope -- has anyone achieved

it?)

I find the mechanical aspect more pleasing than the cube. "Magic" is more

satisfying to manipulate than almost any of its predecessors. The

linking principle can be generalized to any number of squares. I am

considering breaking a couple and wiring them together to make Big

Magic.