Random Blindfold Cubing Discussion

Bhargav777 said:
So rude :'( :'( :P
Click to expand...

If you are stuck at where you only have 2 centers to swap, then you have to use the niklas commutator 3-cycle to move 2 pieces of the same color and one of a different color, thus making it look like a 2-cycle.

Ubl - Dfl - Ubl?

If it's only those two centers, then you can do the niklas commutator [l2, U r2 U'], but if the rest of the cube is scrambled aswell, it wont work.
 
Username said:
If you are stuck at where you only have 2 centers to swap, then you have to use the niklas commutator 3-cycle to move 2 pieces of the same color and one of a different color, thus making it look like a 2-cycle.

Ubl - Dfl - Ubl?

If it's only those two centers, then you can do the niklas commutator [l2, U r2 U'], but if the rest of the cube is scrambled aswell, it wont work.
Click to expand...

Had Ubl and Dfl switched. Also had Dfr and Rur to be swapped. D:
 
Username said:
You don't :P
Click to expand...

You can't just swap two centers. This is impossible.
But there's a little trick you can do, so that it looks like a 2-swap.
For instance, if you want to swap a white (center 1) and a blue center piece (center 2), you have to find a second blue center (center 3) and than cycle these three centers like: center 1 -> center 2 -> center 3 -> center 1. Or you look for another white piece (center 3) and cycle these three centers: center 1 -> center 3 -> center 2 -> center 1.

Bhargav777 said:
So how do I swap 2 centres alone?
Ubl - Dfl - Ubl?
Click to expand...

For this case you could do Niklas: l2 U r2 U' l2 U r2 U', but this will only work, if Drf is solved already. Notice, that you actually swap Ubl with Drf with Dfl. So the Ubl center goes to Drf, which goes to Dfl, witch goes to Ubl.
 
Jakube said:
You can't just swap two centers. This is impossible.
But there's a little trick you can do, so that it looks like a 2-swap.
For instance, if you want to swap a white (center 1) and a blue center piece (center 2), you have to find a second blue center (center 3) and than cycle these three centers like: center 1 -> center 2 -> center 3 -> center 1. Or you look for another white piece (center 3) and cycle these three centers: center 1 -> center 3 -> center 2 -> center 1.



For this case you could do Niklas: l2 U r2 U' l2 U r2 U', but this will only work, if Drf is solved already. Notice, that you actually swap Ubl with Drf with Dfl. So the Ubl center goes to Drf, which goes to Dfl, witch goes to Ubl.
Click to expand...

Thanks a lot. :D :D I'll work on that :) :)
 
Figuring out systems to keep track of which pieces you've memoed is a fun challenge. My warm-up challenge was fixing my system for bigcubes wings about a week before my last comp, I think it helped. The real challenge is dodecahedra ...

Corners: actually quite easy to figure out, it's only 20 pieces.
Edges: trickier, but I've got a decent method which can get slightly awkward sometimes, but it should help a lot.
Centres (only looked at X centres so far, but + should be the same): definitely interesting. Took a while and some creativity, but I have a method, as yet not fully tested but it should be fine.
Wings: ... ... ... I really don't have a $£"*& clue. Yet. I'm working on it. 60 pieces is insane.

Tutorials for megaBLD should be coming soon, I've got them mostly planned out. Attempts at megaBLD will resume soon, going for sub-20. Tutorial for centre tracking might be made, though I suspect my audience would consist only of Mike Hughey :p. Tutorial for wings might get made if it's even possible.
 
bobthegiraffemonkey said:
Figuring out systems to keep track of which pieces you've memoed is a fun challenge. My warm-up challenge was fixing my system for bigcubes wings about a week before my last comp, I think it helped. The real challenge is dodecahedra ...

Corners: actually quite easy to figure out, it's only 20 pieces.
Edges: trickier, but I've got a decent method which can get slightly awkward sometimes, but it should help a lot.
Centres (only looked at X centres so far, but + should be the same): definitely interesting. Took a while and some creativity, but I have a method, as yet not fully tested but it should be fine.
Wings: ... ... ... I really don't have a $£"*& clue. Yet. I'm working on it. 60 pieces is insane.

Tutorials for megaBLD should be coming soon, I've got them mostly planned out. Attempts at megaBLD will resume soon, going for sub-20. Tutorial for centre tracking might be made, though I suspect my audience would consist only of Mike Hughey :p. Tutorial for wings might get made if it's even possible.
Click to expand...

actually I'm very interested in this , because I might try the master kilominx BLD after I get a megaBLD success ( which I hope this happens in 2 weeks , I will start real attempts next week :) ) , I've got all MegaBLD figured out , and I can do sighted solves very easily , currently I'm working on my memo , and I took advantage of my arabic first language so that I only memo 50 characters . I actually find megaBLD more fun than any other thing , because I taught it to myself , and I figured out all the setup moves all by myself , I just hope I can get a success soon :)
 
etshy said:
actually I'm very interested in this , because I might try the master kilominx BLD after I get a megaBLD success ( which I hope this happens in 2 weeks , I will start real attempts next week :) ) , I've got all MegaBLD figured out , and I can do sighted solves very easily , currently I'm working on my memo , and I took advantage of my arabic first language so that I only memo 50 characters . I actually find megaBLD more fun than any other thing , because I taught it to myself , and I figured out all the setup moves all by myself , I just hope I can get a success soon :)
Click to expand...

Ooh, didn't think I would really get any interest. Megaminx BLD is quite interesting, I figured it all out by myself too. Also, I use english+greek+digits in a weird system to get 60 characters, which helps. Once my tutorial is up on Youtube we can compare ideas. And if you find a nice way to track MK wings, please let me know! How fast do you think you will be?
 
bobthegiraffemonkey said:
Ooh, didn't think I would really get any interest. Megaminx BLD is quite interesting, I figured it all out by myself too. Also, I use english+greek+digits in a weird system to get 60 characters, which helps. Once my tutorial is up on Youtube we can compare ideas. And if you find a nice way to track MK wings, please let me know! How fast do you think you will be?
Click to expand...

yeah it's very interesting , I also use a combination of arabic+english+digits which helps too , I can't wait to get a success honestly :)
I think I will break the 1 hour barrier at the beginning , only 50 characters to memo isn't that much , much like a 4BLD , so I don't think memo will take that long , but because it is very easy to misorient the megaminx that I will have to go slow on the first couple of attempts to get use to it , so yeah I will break the 1 hour , but hopefully I will sub-hour as soon as I get a success :)
as for the master kilominx , I will order one in the next couple of weeks because I gave mine to a friend , so I think by the end of this month I will able to give the wings a try :)
 
Has anyone thought about doing a memo for 4x4 centers where you would simply remember the color? I am learning 4bld but I can never decide which letter to shoot to so memo takes forever.
 
Ollie said:
Is there a faster way to solve DFr -> UFl? Doing U2 B' R' U [wing parity] U' R B U2 is long and slow
Click to expand...
On 5x5, in SiGN:
U2 2-3r' U2 2-3r2 U2 2-3r U2 2-3r U2 (2L 2-3r2) U2 2-3r' U2 2R U2 2L'
Or, without the weird stuff I do,
U2 2R' U2 2R2 U2 2R U2 2R U2 (2L 2R2) U2 2R' U2 2R U2 2L'.
I like the first one since the double slice turns for 5x5 let me use M-slice fingertricks easily, single slice turns on 5x5 aren't as nice IMO. I can try putting in some double outer layer turns in the second one if you prefer, like I did with the per special alg you like. Btw this is basically just r2 parity, the way I do it anyway.
 
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