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 Post subject: 2x2x4 variant
PostPosted: Mon Dec 22, 2003 7:02 am 

Joined: Sat Mar 22, 2003 9:11 am
Location: Marin, CA
The 2x2x4 has a neat shape-changing property but a rather annoying deficiency - the ends can only be rotated in very few positions, hence their mobility doesn't matter much for normal scrambling.

Here's an idea - build a 2x2x2, then add the 2x2x4-style extra pieces not just to two sides but to four sides. The result would be like a 4x4x2 with the corners cut off. It changes shape like the 2x2x4, but there's usually a face which can be rotated, instead of only rarely.

 Post subject: Re: 2x2x4 variant
PostPosted: Tue Dec 23, 2003 7:02 am 
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Joined: Mon Dec 10, 2001 2:15 am
Location: Amsterdam, The Netherlands

The ends are just like the 2x2x2 corners, with all there possibliities , I consider this not a few position.

I assume you that you refer to a few postiotiins if the shape is 2x2x4. And you have solved one end.

Your idea is not new and is part of US patent 4,593,907
Abu-Shumays, et al. June 10, 1986
Filed: July 2, 1982
This patent also decribe "our" 2x2x4 extension, most of the 2x2x2 extension are described in this patent!

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