[Help Thread] 7x7x7 Discussion

[IngeniousBanana]

I'd say practice punctuation.

 

[TMOY]

Turn really fast. It sounds stupid but just focusing on that helped me. I got sub 10min when I was averaging about high teens for 3x3 so I definately would take Dene's advice.

I got consistent sub-10 on the 7^3 when I was not even averaging sub-30 on the 3^3. The 3^3 times are almost irrelevant, even if you're using reduction on such a big cube the 3^3 part will only take a small part of the solving time anyway. IMHO working on the smaller big cubes may helps much more..

 

[James Ludlow]

I would say that, based on your times for other cubes, you are a very long way from getting sub10 on 7x7. I would recommend working on 3x3 more. Try to get that in the low 20 range. Then try and get 5x5 down to the low 2 minute range. Then you should be able to get sub10 on 7x7 with ease.

With 5x5 down to low 2mins, you should easily be sub7 I think.


Back to your method, if solving the edges like a 5x5 means doing the inner edges completely, then doing the outer edges, you may want to address this. Do it all as one stage ie get the 5edges together, not 3 edges, then come back later to add the other two.

 

[vcuber13]

With 5x5 down to low 2mins, you should easily be sub7 I think.

im averaging about 2:05 on 5x5 and about 8min on 7x7

 

[Dene]

With 5x5 down to low 2mins, you should easily be sub7 I think.

I wouldn't go as far as that. I would think that getting sub10 would be very easy, sub9 would not take too much work, sub8 would take some effort, sub7 would come with a decent amount of work.

I can't recall my times exactly, but I think I worked my butt off and got sub6 on 7x7 when I was around 2 minutes on 5x5.

 

[slocuber]

With 5x5 down to low 2mins, you should easily be sub7 I think.


Back to your method, if solving the edges like a 5x5 means doing the inner edges completely, then doing the outer edges, you may want to address this. Do it all as one stage ie get the 5edges together, not 3 edges, then come back later to add the other two.

Hmm, I'm averaging sub 1:55 on 5x5 and I have only a few sub 8 7x7 solves

 

[James Ludlow]

im averaging about 2:05 on 5x5 and about 8min on 7x7

I can't recall my times exactly, but I think I worked my butt off and got sub6 on 7x7 when I was around 2 minutes on 5x5.

Hmm, I'm averaging sub 1:55 on 5x5 and I have only a few sub 8 7x7 solves

Really? I avg 2.20ish on 5x5 and am pretty much 6.30 on 7x7, with a sub6 PB single now (not that the single counts for much.)

 

[Dene]

Do you practise 7x7 a lot?

 

[AvGalen]

Sub 6 single and almost sub 6 average on 7x7x7, but needing 2 minutes on 5x5x5 which I practice much more often.
and I do inner center edge-pairing and then outer edge-pairing (AvG for bigcubes) which everyone seems to agree on is slow but it only takes me about 2 minutes. 3:30 for centers, 2:00 for edge-pairing, 0:45 for 3x3x3 is quite easy to reach for me (a very slow turner). My theoretical limits are about 3:00, 1:40 and 0:30 giving me a 5:10. My real PB is about 5:30

 

[Vinny]

Really? I avg 2.20ish on 5x5 and am pretty much 6.30 on 7x7, with a sub6 PB single now (not that the single counts for much.)

Yeah me too I'm mid 2:20s for 5x5 and sub 7 for 7x7

 

[maggot]

Sub 6 single and almost sub 6 average on 7x7x7, but needing 2 minutes on 5x5x5 which I practice much more often.
and I do inner center edge-pairing and then outer edge-pairing (AvG for bigcubes) which everyone seems to agree on is slow but it only takes me about 2 minutes. 3:30 for centers, 2:00 for edge-pairing, 0:45 for 3x3x3 is quite easy to reach for me (a very slow turner). My theoretical limits are about 3:00, 1:40 and 0:30 giving me a 5:10. My real PB is about 5:30

what is the fast way? this is the way i do it ; w; basically AvG twice. i average about 8:30ish. i feel like that is really slow, but i fail at last 2 centers

 

[James Ludlow]

Do you practise 7x7 a lot?

I probably do the same amount of solves on 7x7 as I do on 5x5. Time wise, I guess I do, but amount of solves no.

 

[AvGalen]

what is the fast way? this is the way i do it ; w; basically AvG twice. i average about 8:30ish. i feel like that is really slow, but i fail at last 2 centers

Don't misunderstand me, I don't think AvG twice slow (why would I use it otherwise?) but almost everyone uses the "bigcube" method. make a whole paired edge (5 edges combined), store it in U (or D, but not both), do that for the first 4 big edges. Then turn the cube upside down and do it 4 more times so that U and D contain 8 big combined edges. During this stage you don't have to realign the centers all the time, they can be "sliced apart". The last 4 pairing can be done with AvG or intuitive or with lots of algs (again, see the bigcube website)

 

[Magix]

Turn really fast. It sounds stupid but just focusing on that helped me. I got sub 10min when I was averaging about high teens for 3x3 so I definately would take Dene's advice.

I haven't solved big cubes but that actually sounds like a valid idea. You save a tiny amount of time per turn but since it's such a big cube the time difference in the end should be pretty noticable.

 

[AvGalen]

I haven't solved big cubes but that actually sounds like a valid idea. You save a tiny amount of time per turn but since it's such a big cube the time difference in the end should be pretty noticable.

I just solved a 7x7x7 really slowly to test this theory and even with pure wristing and super slow turning it took me only 7:15 to solve a 7x7x7. (about 1 minute slower than normal)
I also tried solving it by turning really fast and that resulted in a time of about 6:45. 30 seconds faster than with really slow turning but 30 seconds slower than normal. Lookahead and continuos/smooth solving is more important than turning fast

 

[James Ludlow]

I haven't solved big cubes but that actually sounds like an invalid idea. You lose a tiny amount of time per turn and since it's such a big cube the time difference in the end would be pretty noticable.

Fixed.

Same rules apply as 3x3 in my opinion - turn slow and lookahead.

 

[Mike Hughey]

Don't misunderstand me, I don't think AvG twice slow (why would I use it otherwise?) but almost everyone uses the "bigcube" method. make a whole paired edge (5 edges combined), store it in U (or D, but not both), do that for the first 4 big edges. Then turn the cube upside down and do it 4 more times so that U and D contain 8 big combined edges. During this stage you don't have to realign the centers all the time, they can be "sliced apart". The last 4 pairing can be done with AvG or intuitive or with lots of algs (again, see the bigcube website)

I know I'm terribly slow, so my opinion doesn't count much, but although I've spent a good bit of time trying to get better at the bigcubes method, I'm still about a minute faster on 7x7x7 using pure AvG over a bigcubes first 8 edges / AvG last 4 edges hybrid (7:30 average vs. 8:30 average). My problem with the bigcubes method is indecision - I always get confused which edge I should go for next. With AvG, there's no indecision - there's usually only one correct answer. (The only exception being when you "accidentally" solve your buffer piece.)

 

[primecuber]

7x7 centers help

:confusedk i've had my 7x7 for about six months and i've only gotten two sub tens. but my real problem is my center look ahead. Got any tips

 

[vcuber13]

practice 5x5

 

[freshcuber]

Make sure you can identify the orbit of the piece you're working with and the orbits of the other pieces you're going to add to it. Practicing 5x5 isn't a bad idea either. It's pretty way to sub-10 a 7x7 so I'm sure you can get it.

What are your splits for centers edges and 3x3?