Penrose Parity

[JakeTheWampus]

Hey, I’ve got this parity on my Penrose cube that I can’t figure out. Mind helping me out? Basically, I’ve got two corners that need to switch places. Blue and White and Red and Blue. The two next to the long blue middle. Help please!

 

[xyzzy]

Hey, I’ve got this parity on my Penrose cube that I can’t figure out. Mind helping me out? Basically, I’ve got two corners that need to switch places. Blue and White and Red and Blue. The two next to the long blue middle. Help please!

There should be a pair of identical pieces elsewhere on the puzzle. (In fact, multiple such pairs. You can choose any of them.) You can then treat this as a pair of corner swaps or as a corner swap with an edge swap, depending on which pair of identical pieces you choose. Do some setup moves to bring them all to the same layer. If you had a pair of corner swaps, do something like an H perm + U2 or an E perm, and if you had a corner swap and an edge swap instead, do something like a F/T/J/R perm.

Depending on how careful you were with your setup moves, you may have to twist some corners or flip some edges afterwards, but that should be easy.