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 Post subject: Copter ConfusionPosted: Tue Mar 22, 2011 3:43 pm

Joined: Fri Jan 14, 2011 5:16 pm
Location: Unknown
How do you fix this? Its driving me crazy!

 Attachments: Copter Parity.jpg [ 152.57 KiB | Viewed 765 times ]
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 Post subject: Re: Copter ConfusionPosted: Tue Mar 22, 2011 3:51 pm

Joined: Fri Feb 08, 2008 1:47 am
Location: near Utrecht, Netherlands
You can't solve that. I think you twisted one of the corners by accident.

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 Post subject: Re: Copter ConfusionPosted: Tue Mar 22, 2011 4:18 pm

Joined: Thu Jan 20, 2011 7:37 pm
nice title though.

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 Post subject: Re: Copter ConfusionPosted: Tue Mar 22, 2011 4:37 pm

Joined: Sun Oct 08, 2006 1:47 pm
Location: Houston/San Antonio, Texas
TomZ wrote:
You can't solve that. I think you twisted one of the corners by accident.

or you could just do [UF UR UL UB UR UL]x2

(U=red, F=blue, L=yellow which I'm assuming makes R=orange and B=green right? Mefferts Helicopter scheme which is traditional scheme with white and orange swapped)

Peace,
Matt Galla

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 Post subject: Re: Copter ConfusionPosted: Wed Mar 23, 2011 12:12 pm

Joined: Mon Feb 06, 2006 12:52 am
Yes, you can solve that. If it's two corners swapped it's a possible scenario.
I solve this parity, if you can call it one, by turning 3 adjacent edges around their corner, always one after another in any direction. After 9 turns (twisting every of the 3 edges 3 times) you end up having 4 corners swapped. Move would be: [UR FR UF]x3 If you then just use your alg for swapping 3 corners you can solve it. Assuming you have an alg to swap 3 corners, which I think is the case since you almost entirely solved the puzzle except this "parity" case.
Now my method isn't really elegant or fast but it's easy to memorize. If you want to speed solve, forget it, otherwise it does work.

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