Big Cube BLD Discussion

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Goosly said:
corners: ~8 targets, 1 location
midges: ~12 targets, 2 locations
wings: ~24 targets, 4 locations
for centers it depends on the scramble, usually you have like 4-6 solved center pieces, so you'll need 3 or 4 locations for + centers and 3 or 4 for x centers
Click to expand...

Thanks, this is really helpful. I thought it was going to be a lot harder - if I can memorise a deck of cards, memoing a 5x5 might actually be possible!
 
TDM said:
How do you keep track of what pieces you have and haven't memoed for 4x4 centres/edges?
Click to expand...

For centers I solve the targets on each face in alphabetical order, so the first center of each color I solve in the upper-left, the next in the upper-right, then lower left and lower-right. When I get to the first piece I've solved on one face, I keep one of my fingers on that piece, and when I get to that face again I know which ones I've solved, so I do the next target on that face and move my finger to that piece. Once I've done all 4 centers on a face, I take my finger off that side, so I know I'm done with centers when I'm not touching any sides of the cube.
For wings I just use # of targets - # of cycle breaks + # of solved pieces (that aren't the buffer) = 23
 
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Cale S said:
For centers I solve the targets on each face in alphabetical order, so the first center of each color I solve in the upper-left, the next in the upper-right, then lower left and lower-right. When I get to the first piece I've solved on one face, I keep one of my fingers on that piece, and when I get to that face again I know which ones I've solved, so I do the next target on that face and move my finger to that piece. Once I've done all 4 centers on a face, I take my finger off that side, so I know I'm done with centers when I'm not touching any sides of the cube.
For wings I just use # of targets + # of cycle breaks - # of solved Pieces = 23
Click to expand...
Ah, the centres one seems so obvious now. Thanks! (I was going to solve centres in the same order too)

Is there a good way to do edges without counting? I'd be ok with doing it, but I'd just prefer to do everything as easily as possible for when I'm just starting 4BLD.
(also, are you sure that's correct? If you have all wings solved, you get 0+0-24 = -24, and a 3-cycle gives 2+0-21 = -19...)
 
TDM said:
Ah, the centres one seems so obvious now. Thanks! (I was going to solve centres in the same order too)

Is there a good way to do edges without counting? I'd be ok with doing it, but I'd just prefer to do everything as easily as possible for when I'm just starting 4BLD
Click to expand...
Instead of thinking of it as a formula I just think of it as solved pieces lowering the number of targets needed and cycle breaks increasing it (with 23 being the case without cycle breaks or solved pieces). I use 3 rooms with 8 letters in the first and second rooms, and the third one varies but still is close to 8 letters (7 + # cycle breaks - # solved pieces). This way the only time I have to count targets is at the last 8 (and it's in pairs so it's easy).
TDM said:
(also, are you sure that's correct? If you have all wings solved, you get 0+0-24 = -24, and a 3-cycle gives 2+0-21 = -19...)
Click to expand...
Oops it should be # of targets - # of cycle breaks + # of solved pieces (that aren't the buffer) = 23
I was just confused because I don't think of it as a formula when doing solves :p
 
Cale S said:
Instead of thinking of it as a formula I just think of it as solved pieces lowering the number of targets needed and cycle breaks increasing it (with 23 being the case without cycle breaks or solved pieces). I use 3 rooms with 8 letters in the first and second rooms, and the third one varies but still is close to 8 letters (7 + # cycle breaks - # solved pieces). This way the only time I have to count targets is at the last 8 (and it's in pairs so it's easy).

Oops it should be # of targets - # of cycle breaks + # of solved pieces (that aren't the buffer) = 23
I was just confused because I don't think of it as a formula when doing solves :p
Click to expand...
I kind of get it... I'll do practise memos and see if I have any problems. I don't have three rooms yet, but I'm sure I could if I tried :p I'll try using three different locations and using your other formula then, since it'd save time only counting a third of the wings, and I'd be less likely to forget memo by the end, which I do quite often.
 
OK a couple more questions if you don't mind:

In what order should I execute the different piece types for 5BLD?

I know all the parity fixes and understand what they do, but where and how do I execute them between execution of different piece types?

I would work this out by myself, but I'm too lazy. Besides, it's nice to get advice from the pros.
 
JemFish said:
Also, assuming I store 3 letter pairs in a location, how many locations would I usually need to store all my memo for 5BLD (excluding midges)? I'm too lazy to work it out, but if I did I might have missed something. Can you please break down the number of locations into separate corner centres/cross centres/wings/corners please? Thanks and sorry for the trouble...
Click to expand...

JemFish said:
In what order should I execute the different piece types for 5BLD?

I know all the parity fixes and understand what they do, but where and how do I execute them between execution of different piece types?

I would work this out by myself, but I'm too lazy. Besides, it's nice to get advice from the pros.
Click to expand...

The bolded sentences are not helping you. If you're too lazy to think about BLD concepts on your own, then what is the incentive for someone who has thought about these concepts to want to have a conversation with you about them?
 
JemFish said:
OK OK, I'll work it out myself (actually I was).
Click to expand...

People enjoy discussing topics like solving order, but present to us your thoughts on what you think is the best order, and why. Or say that you have no idea which order you like, but some orders seem better to you than others, and here's why. People on this forum don't like spoon feeding, we like discussing.

Back on topic, there is no "best" solving order. However, some orders are more common than others based on criteria that each solver is trying to maximize.

Which orders are you thinking about so far, and why?
 
cmhardw said:
People enjoy discussing topics like solving order, but present to us your thoughts on what you think is the best order, and why. Or say that you have no idea which order you like, but some orders seem better to you than others, and here's why. People on this forum don't like spoon feeding, we like discussing.

Back on topic, there is no "best" solving order. However, some orders are more common than others based on criteria that each solver is trying to maximize.

Which orders are you thinking about so far, and why?
Click to expand...

I don't do 5BLD, but for 4BLD, I excecute centers, edges, and then corners. If I were to do 5BLD and up, that's the order I would do. Just so my corners don't rotate the centers and I don't have to deal with turning the center, and then turning it back. It is just easier to do it that way, in my opinion.
 
cmhardw said:
People enjoy discussing topics like solving order, but present to us your thoughts on what you think is the best order, and why. Or say that you have no idea which order you like, but some orders seem better to you than others, and here's why. People on this forum don't like spoon feeding, we like discussing.

Back on topic, there is no "best" solving order. However, some orders are more common than others based on criteria that each solver is trying to maximize.

Which orders are you thinking about so far, and why?
Click to expand...

Yeah...you're right about the spoon feeding thing, and I should have worded my question differently...

Anyway, I think that it's best to execute pieces in the following order:

x-Centres, +-centres, wings, midges, corners.

Having x-centres first is just personal preference. I want to be able to memorise corners before midges so memo would be:

+-Centres, wings, corners, midges, x-centres.

Also, this is what I understand about parity so far:

For Centres: After executing +- or x-centres, just perform a [U2].

For Wings: After executing wings, set DF up to UF and perform [l' U2 l' U2 F2 l' F2 r U2 r' U2 l2] (I hope I didn't get anything wrong there).

For Midges/Corners: After executing midges, set DF up to UF and perform [Rw2 F2 U2 r2 U2 F2 Rw2] and then [D' L2 D M2 D' L2 D] (M2 being for midges and wings). Execute corners and then perform [L2 R2] at the end.

Am I doing anything wrong, or, is there a better way?
 
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JemFish said:
Also, this is what I understand about parity so far:

For Centres: After executing +- or x-centres, just perform a [U2].

For Wings: After executing wings, set DF up to UF and perform [l' U2 l' U2 F2 l' F2 r U2 r' U2 l2] (I hope I didn't get anything wrong there).

For Midges/Corners: After executing midges, set DF up to UF and perform [Rw2 F2 U2 r2 U2 F2 Rw2] and then [D' L2 D M2 D' L2 D] (M2 being for midges and wings). Execute corners and then perform [L2 R2] at the end.

Am I doing anything wrong, or, is there a better way?
Click to expand...

For wings you have it mostly right, but DF is technically being brought to FU (on the same edge as UF but it makes a difference) with a D' L' F setup to that wing parity alg. You also do an extra r2 after the last wing target and before parity to fix the r slice.

I'm not sure I understand your way of doing midge-corner parity, but I do it like this:
1. solve midges, doing the last target with M2
2. U' F2 U M2 U' F2 U (or you could do D' L2 D M2 D' L2 D)
3. solve corners, doing the last target with OP
4. y2 (R U R' U') Rw2 Fw2 U2 r2 U2 Fw2 Rw2 (U R U' R')
 
Cale S said:
For wings you have it mostly right, but DF is technically being brought to FU (on the same edge as UF but it makes a difference) with a D' L' F setup to that wing parity alg. You also do an extra r2 after the last wing target and before parity to fix the r slice.
Click to expand...

Yep, I forgot to mention that; I learnt it from 4BLD so I know how to do wings...

Cale S said:
I'm not sure I understand your way of doing midge-corner parity, but I do it like this:
1. solve midges, doing the last target with M2
2. U' F2 U M2 U' F2 U (or you could do D' L2 D M2 D' L2 D)
3. solve corners, doing the last target with OP
4. y2 (R U R' U') Rw2 Fw2 U2 r2 U2 Fw2 Rw2 (U R U' R')
Click to expand...

OK I'll try that. It makes more sense than what I did.
 
It's not enough to fix the midges parity by doing M2 U2 M' U2 M and then do a T-perm or whatever with the two left corners (buffer+last target)? Also, I want to know if there's a method like U2 for the +centres, because I don't feel confident with conmutators.
 
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