The One-Answer Question Thread [closed]
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ajayd
Regular
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- Aug 16, 2012
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- 117
Why isn't it just (6!) ? 6 choices for the first face, 5 for the second, etc.
yoinneroid
Veteran
no, let's take any random cube, in 6! a y rotation would mean a different scheme compared to the starting position.
TDM
Legend
Remember there are 6*4 rotations. 6 for each colour that can be on U, 4 for each colour on F for every colour on U.
6!/6*4 = 5!/4
= 120/4
= 30.
Also, bump:
ajayd
Regular
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- Aug 16, 2012
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Oh, so that's why we need a fixed face. Got it, thanks.
yoinneroid
Veteran
which CLL, the one for 2x2? the one in the CE LL in 3x3 or in 3x3 where everything else except the CLL is solved?
scottishcuber
Veteran
ThomasJE
Premium Member
A more in-depth explanation:
There are 6 choices for the first face, 5 for the 2nd etc... So, the number of permutations is 6! = 720.
But, this 720 includes rotations. A particular colour can appear on 6 faces, and the other colours can be in another 4 rotations. So, there are 6*4 = 24 different rotations for each colour scheme.
To discount rotations, we need to do 720/24, which equals 30.
NB: yoinneroid's working is also correct.
Note
Regular
Would it help to learn algorithms for F2L? Apparently the tutorial I watched didn't have any to memorize so I just did it without any set of moves to follow.
TDM
Legend
Thanks! Do you also know what the average number of moves for a layer is?
Learn F2L intuitively; don't learn algorithms.
AlexBliss24
Member
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- Mar 10, 2014
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Competitions
Do you have to still pay the fee when just watching at competitions?
If you are watching can you just turn up on the day?
Do you have to still pay the fee when just watching at competitions?
If you are watching can you just turn up on the day?
TinaIsAwesome
Veteran
It depends on the competition. I don't think you have to pay to spectate since parents don't have to if they go to watch their child compete. However some comps don't allow spectators so it would be best to e-mail the organizer and ask them directly. I know quite a few people who've done just that.
Bh13
Veteran
Is learning COLL worth it? I average about 13-14 seconds, would it be a good idea to learn COLL, Should I focus on lookahead, or should I learn advanced F2L stuff?
Last edited:
TDM
Legend
Full ZB is very efficient due to having so few steps, and has an average movecount of 40. Roux averages a bit less than 50 moves.
TDM
Legend
You're taking the whole of CFOP and basically skipping a whole part of the solve every time. I can't see why it's as low as 40, but it should be at least 10 moves (a guess, but it still makes it lower than Roux) saved on average.
newtonbase
Premium Member
I'm learning 3-2-3 edge pairing for Yau on 4x4 but sometimes end up with only 2 pairs to solve. How can I solve them without messing up the cross?
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