PenguinsDontFly
Member
are there any tutorials on it?
guroux has one on his channel, and so does maps600.
are there any tutorials on it?
(Also, is reviving a thread this old acceptable on this forum? I'm not too familiar with the rules.)
I actually really like this. Much easier to learn than BU prediction. I think I'll learn it. I've been having problems recognising cases with misoriented centres, but I like how this works for that too.I've been interested in optimizing Roux LSE 4c cycles for a while and finally sat down and figured something out. I see many before me have come up with solutions. I started to look at them but I find it's best to make my own solution first then I can understand others better in comparison. Please criticize the following approach and tell me how it compares to the commonly used methods. I'm sure most/all of what's useful here is just another way of looking at existing ideas but still curious what you think of this viewpoint.
I think BU prediction is attempting to do a similar thing to what you're doing. I wrote up a post on that recently here; have a look and let me know what you think.
is reviving a thread this old acceptable on this forum?
I'd be really interested to hear how it might not be as good as BU though but I can't tell on my own.
The other thing is that when I looked at BU things in the past they start with U3 sometimes which seems easy to avoid using my method. That always dissuaded me from going further with learning it but maybe there is some useful tradeoff in there?
This sort of bugs me about BU as well, but I think you can avoid it if you pay attention to F while resolving ULUR--you just have to make sure you don't see a solid bar with BU color on F, and you can proceed normally (otherwise just AUF backwards in order to cancel out the U3 and you're OK). I've never been able to put this into practice, though, since I'm currently only able to track/predict BU.
My method isn't really anything new--it's just my way of recognizing cases with BU prediction. I look for the block that involves BU color and recognize like that. There are 6 distinct cases.
Alg.cubing.net demo of all 6:
M'U2M'U2 // BU vert 2x1 down -> U2
(M'U2M'U2)'
MU2MU2M2 // BU 1x1 down -> M2
(MU2MU2M2)'
M2U2MU2M // BU 1x1 up -> M'
(M2U2MU2M)'
M2U2M'U2M // BU 2x1 up -> M'
(M2U2M'U2M)'
U2MU2M' // BU flat 2x1 up -> M
(U2MU2M')'
U2M'U2M' // BU 2x2 up -> M
(U2M'U2M')'
Out of curiosity, how are you deciding how to solve the rest using BU? In your video you say that you essentially solve the 3x1 line with BU color in it. Do you just approach this intuitively? (If so, it's possible you just learned the 6 cases I found by solving them so many times)
Orientation: D-White L-Blue
At the end of 4b, M2 to move Blue/Yellow and Green/Yellow edges to the top.
Before any U move look at the LU and RU Red/Orange stickers.
If LU/RU are different (one Red, one Orange), then turn U so FU matches F center.If Green is on the left then you are already out of the cycle.
If Blue is on the left: M2 U2.
If LU/RU are the same (both Red or both Orange), then turn U so Blue is on the left.If FU matches U center: M U2
If FU does not match U center: M' U2
To reduce the number of moves, it is useful to remember the D2:
D2 is very slow in solves, it requires a regrip and the longer solution is usually faster. You can use Uw moves: e.g. for the first one you can do M' Uw2 M' Uw2, but it's still difficult to do quickly. I think almost everyone uses the 5 move algs.To reduce the number of moves, it is useful to remember the D2:
MU2MU2M2 // BU 1x1 down -> M2
M'D2MD2
M2U2MU2M // BU 1x1 up -> M'
D2MD2M'
M2U2M'U2M // BU 2x1 up -> M'
D2M'D2M'