Message #2558

From: Andrey <>
Subject: Re: RefleCube: a reflection on the Rubik’s Cube
Date: Tue, 18 Dec 2012 05:29:01 -0000

Yes, it’s the answer. Both puzzles require zero moves because they are impossible, so you don’t even try to solve them.

— In, "schuma" wrote:

I don’t get it. How can you turn a face by 90 degrees on Mirror + only, or Mirror X only? I think it’s impossible because of the orbit constraints. And the centers never move, so you can’t play any trick on the global orientation.


— In, "Andrey" wrote:

Good puzzle about 90 deg twist. I can do both VERY quickly :)
And mixed puzzle needs two reflections.


— In, Melinda Green wrote:

Indeed, your new puzzle is awesome, Nan! I find your UI to be very easy
to understand and manipulate. I was able to solve the Mirror + version
intuitively which surprised me. I did restart a few times when I felt
stuck near the end so maybe that let me skip the whacky things that can
happen. I like this puzzle a lot, perhaps because so many things that
are tricky to do in the original puzzle can be done here with a single

For those wanting to see reflection moves in David’s MC3D, the key is to
type ctrl-q before a mouse click.

Here is a puzzle: What is the simplest way to perform a 90 degree face
twist on the Mirror + or Mirror X puzzles?