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andew0

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Sep 24, 2022
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Hong Kong
I dont know how you avoid parity on 4x4 because sometimes I get cases where there is a 2 wing swap (opposite or knight shape) and I don't know how to avoid or solve that. if you can please tell me how it makes my times like 2 minutes
 

LBr

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Anyone know a good alg for these?
And mirror as well if possible
 

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xyzzy

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Dec 24, 2015
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I dont know how you avoid parity on 4x4 because sometimes I get cases where there is a 2 wing swap (opposite or knight shape) and I don't know how to avoid or solve that. if you can please tell me how it makes my times like 2 minutes
Like LBr's pictures above?

You shouldn't be getting those cases if you're using reduction; pair all of the edges, then deal with OLL parity when you get it. "Avoiding" OLL parity is usually done by solving edge parity together with the centres, but to do that you need to know how to count the edge parity from a fully scrambled cube.

Anyone know a good alg for these?
And mirror as well if possible
Check 4BLD alg sheets.

The way I'd solve these are:
r2 F2 U2 2R U2 2R2 F2 r R U2 2R2 U2 F2 2R F2
(y') [R' F' : 2R U2 2R U2 F2 2R F2 2L' U2 2L U2 2R2]
which are almost certainly not the fastest.
 

xyzzy

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Dec 24, 2015
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From a 46-second mean of 12, frame-counted:

F2C: 4.3 s (9%)
3cross + L4C: 13.4 s (29%)
Edge pairing: 12.8 s (28%) (includes last cross edge)
F2L + LL: 15.7 s (34%)

Probably doesn't make too sense to compare my splits to others' because I usually also solve one F2L pair between finishing the cross and doing the rest of edge pairing.

also I got on-cam-PB single while measuring this but the camera angle is horrendous and you can barely see anything anyway
 

andew0

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Sep 24, 2022
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Location
Hong Kong
ya thanks man
Like LBr's pictures above?

You shouldn't be getting those cases if you're using reduction; pair all of the edges, then deal with OLL parity when you get it. "Avoiding" OLL parity is usually done by solving edge parity together with the centres, but to do that you need to know how to count the edge parity from a fully scrambled cube.


Check 4BLD alg sheets.

The way I'd solve these are:
r2 F2 U2 2R U2 2R2 F2 r R U2 2R2 U2 F2 2R F2
(y') [R' F' : 2R U2 2R U2 F2 2R F2 2L' U2 2L U2 2R2]
which are almost certainly not the fastes
 

sp33dqbr123

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Dec 20, 2022
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Australia
quick question: is doing the first three edges into half-centres, or each centre one by one (depending on availability of bars, etc), and then finishing the last edge, more optimal than doing all four white edges followed by completing the centres? I've always done the latter of these, and recently learnt half centres, so im wondering which is generally more optimal and widely used by top solvers. thanks :)
 

Jorian Meeuse

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quick question: is doing the first three edges into half-centres, or each centre one by one (depending on availability of bars, etc), and then finishing the last edge, more optimal than doing all four white edges followed by completing the centres? I've always done the latter of these, and recently learnt half centres, so im wondering which is generally more optimal and widely used by top solvers. thanks :)
3 edges, then centers, then last cross edge. There isnt really an efficient way to solve the centers if all cross edges are already solved. I just tried it and it is possible but not fast by any means.
 

sp33dqbr123

Member
Joined
Dec 20, 2022
Messages
7
Location
Australia
3 edges, then centers, then last cross edge. There isnt really an efficient way to solve the centers if all cross edges are already solved. I just tried it and it is possible but not fast by any means.
ok thanks, and is it more optimal to the last cross edge in the M layer or E layer, thus rotating after all centres are solved?

and another thing, half centres isn't the best method every solve right, where sometimes there won't be any bars: in this case is it best to do every centre one by one?
 

ctfx

Member
Joined
Feb 15, 2023
Messages
4
Location
Brazil
Hi...

I need some help...

I just bought a 4x4 cube. I scrambled it and I'm learning to solve it.

I followed this video tutorial (Learn How to Solve a 4x4 in 10 Minutes (Full Yau Method Tutorial).

I already scrambled the cube 4 times and each time I solve it I get one edge wrong (see attached images).

Any ideas on:

1) how to flip this piece to solve the cube

2) What I might be messing up to end up with this result?

p.s. The cube was never disassembled. Its brand new.. I only scrambled it.

Thanks
 

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