Random Blindfold Cubing Discussion

[leeo]

Total number of 5-cycle edge algorithms

My combinatorics is rusty, but I had some time this weekend to investigate the following question: How many 5-cycle edge algorithms are there?
With some programming, I have a catalog of all 1760 3-cycle edge algorithms from following the BH edge 3-cycle forms. I (inefficiently) combined all 1760 3-cycle edge algorithms to all 1760 3-cycle edge algorithms and filtered the result to those that are simple 5-cycles. For this result I count 304'128 5-cycle edge algorithms.

If I restrict those to only one "buffer" lead position, say UB, I count 126'720

Finally, if I further restrict those where only one of two attached facelets is targeted from the buffer, such as FD or DF, I count 11'520. For example, UB -> FD -> UR -> UF -> UL -> UB (again) F' R U R' U' F2 D U' F' U' F D' U2 F'

So, is the idea of employing a five-cycle to speed up the blindfold edge solving feasible? How many separate optimal generator forms are there that do not twist the center faces? (to be "supercube safe").

 

[Berd]

My combinatorics is rusty, but I had some time this weekend to investigate the following question: How many 5-cycle edge algorithms are there?
With some programming, I have a catalog of all 1760 3-cycle edge algorithms from following the BH edge 3-cycle forms. I (inefficiently) combined all 1760 3-cycle edge algorithms to all 1760 3-cycle edge algorithms and filtered the result to those that are simple 5-cycles. For this result I count 304'128 5-cycle edge algorithms.

If I restrict those to only one "buffer" lead position, say UB, I count 126'720

Finally, if I further restrict those where only one of two attached facelets is targeted from the buffer, such as FD or DF, I count 11'520. For example, UB -> FD -> UR -> UF -> UL -> UB (again) F' R U R' U' F2 D U' F' U' F D' U2 F'

So, is the idea of employing a five-cycle to speed up the blindfold edge solving feasible? How many separate optimal generator forms are there that do not twist the center faces? (to be "supercube safe").

I was thinking about this, doing only like 3 5 cycles of edges in a solve O_o

 

[EvilGnome6]

What's the most popular method for solving a 2x2 blindfold?

 

[josh42732]

Probably 1-look, or just normal corners on any cube, just without the edges, and no orientation.

 

[Berd]

What's the most popular method for solving a 2x2 blindfold?

Old Pochman corners is very easy.

 

[SoySauS]

What's the most popular method for solving a 2x2 blindfold?

it depends on if you're good at 2x2 or not. if you're really good at 2x2, you can 1-look most solves using a speedsolving method. If not, you can just cheat like me and use OP corners (same as how you would on 3x3)

 

[EvilGnome6]

it depends on if you're good at 2x2 or not. if you're really good at 2x2, you can 1-look most solves using a speedsolving method. If not, you can just cheat like me and use OP corners (same as how you would on 3x3)

Even though I learned CLL, I'm pretty bad at 2x2 and I'm horrible at predicting where pieces will end up.

I've never done 3x3 BLD and I'm considering 2x2 BLD as an introduction to blindsolving. How should I go about that assuming I want to transfer those skills to 3x3 BLD some day.

 

[Lazy Einstein]

Keep getting stuck with M2. http://scrambld.cubing.net/?scramble=D_B2_D_R2_D-_U-_B2_U_L2_U_L2_R-_D-_F_D-_U_L-_B_L-_B2_D Why is "Q" the first edge for memo for this scramble?

 

[Cale S]

Keep getting stuck with M2. http://scrambld.cubing.net/?scramble=D_B2_D_R2_D-_U-_B2_U_L2_U_L2_R-_D-_F_D-_U_L-_B_L-_B2_D Why is "Q" the first edge for memo for this scramble?

It has to do with parity. One way of dealing with parity in M2/OP is to imagine that the edges belonging at UL and UB are swapped and memo/execute them as if they were. After you execute edges, you will actually have UB and UL swapped, and they will end up solved after doing an odd number of OP targets.

 

[conn9]

I've just got back into BLD solving and can't seem to remember how to execute parity. I use M2/OP, solving corners then edges. I would use the alg U' F2 U M2 U' F2 U to swap the UL and UB edges. What I can't remember is when I should do this. I thought I did it after corners then at the end of edges as well, but when thinking about it, doing an odd number of edges and 2 of these algs would leave the M slice in the wrong position at the end of the solve right? So what should I be doing instead? Thanks

 

[Berd]

I've just got back into BLD solving and can't seem to remember how to execute parity. I use M2/OP, solving corners then edges. I would use the alg U' F2 U M2 U' F2 U to swap the UL and UB edges. What I can't remember is when I should do this. I thought I did it after corners then at the end of edges as well, but when thinking about it, doing an odd number of edges and 2 of these algs would leave the M slice in the wrong position at the end of the solve right? So what should I be doing instead? Thanks

Execute all edges, D' L2 D M2 D' L2 D, Execute corners.

 

[newtonbase]

I've never done 3x3 BLD and I'm considering 2x2 BLD as an introduction to blindsolving. How should I go about that assuming I want to transfer those skills to 3x3 BLD some day.

Just learn OP corners. It transfers to 3BLD seamlessly. I did it a lot when learning.

 

[conn9]

Execute all edges, D' L2 D M2 D' L2 D, Execute corners.

I see, thanks. Would it then be corners -> U' F2 U M2 U' F2 U -> edges when doing corners first? That doesn't seem to be working but it could just be me being rusty at BLD.

EDIT: I think I've remembered (thanks to a tutorial)! I would do an R(a) perm after corners, and then after edges I would do U' F2 U M2 U' F2 U followed by another final R(a) perm.

 

[guysensei1]

Okay, I've been trying the memory method where you place your images around your house and you go around them (forgot the exact name of it). How do you guys deal with twisted/flipped pieces in this system? Visual?

 

[josh42732]

Okay, I've been trying the memory method where you place your images around your house and you go around them (forgot the exact name of it). How do you guys deal with twisted/flipped pieces in this system? Visual?

Yea visual. But for MBLD, just memo from one side of the piece to where it needs to go as part of your memo
Hello again btw

 

[guysensei1]

Yea visual. But for MBLD, just memo from one side of the piece to where it needs to go as part of your memo
Hello again btw

I suck at visual especially when there's 2-3 corners twisted.
Hello

 

[josh42732]

I suck at visual especially when there's 2-3 corners twisted.
Hello

Well, for corners, if it is a clockwise twist I think of it as a "good corner" and if it is a counter-clockwise twist I think of it as a "weird corner" and for edges, I think of it as a "weird edge". Also, you could flip/twist them first if you can't remember what to twist, but I flip and twist everything after I'm done with everything which probably isn't the best way of doing that, but it works for me.

 

[TheCoolMinxer]

Okay, I've been trying the memory method where you place your images around your house and you go around them (forgot the exact name of it). How do you guys deal with twisted/flipped pieces in this system? Visual?

Flipped edges: just memo both stickers and you know you have to flip that piece Corners: visual, even though it sucks in MBLD (larger than 5 cubes). It's called Roman Rooms, but correct me if I am wrong

 

[Berd]

Flipped edges: just memo both stickers and you know you have to flip that piece Corners: visual, even though it sucks in MBLD (larger than 5 cubes). It's called Roman Rooms, but correct me if I am wrong

It might be called the loci method, they're both quite similar I think.

 

[josh42732]

Learning 4BLD!!! Wish me luck!!! It is already making sense!