[Help Thread] Big Cube Discussion (5x5 / 6x6 / 7x7 / etc)

[zslane]

(Mistake)

 

[xyzzy]

On 5x5 I can send 6 tredges (edge "pairs")to the up and down faces, after this i'm stuckm is there a video or a webpage i can get the final algorithms from?

The first thread you posted has been merged to the Big Cube Discussion Thread. Please check the responses there.

 

[RCastle]

Yes, this can happen unless you are careful to make sure that there is an unsolved tredge on the upper layer facing you before you insert the next tredge. If you position the last unsolved tredge of the upper layer so it is facing you and use R U' R to insert the 4th tredge, it won't displace any that you've already put up there.

Thank you finally a piece of information i can use! I tried it and it worked perfectly, thank you for the help, now its just solving the last 4 tredges i need to learn to do. thanks again for the great info!!!

 

[vidcapper]

I'm soon getting an 8x8 & 9x9 but I can't find the parity algs online anywhere, so I had a go at working them out myself. Please let me know if they are correct and/or I have missed some, as doing them wrong can make a right mess of the cube!

C=corner

8x8

Edge

CooxxooC

3Rw

U2

x

3Rw

U2

3Rw

U2

3Rw'

U2

3Lw

U2

5Rw'

U2

3Rw

U2

3Rw'

U2

3Rw'

8x8

Edge 2

CoxxxxoC

2Rw

U2

x

2Rw

U2

2Rw

U2

2Rw'

U2

2Lw

U2

6Rw'

U2

2Rw

U2

2Rw'

U2

2Rw'

8x8

OLL

4Rw

U2

x

4Rw

U2

4Rw

U2

4Rw'

U2

4Lw

U2

4Rw'

U2

4Rw

U2

4Rw'

U2

4Rw'

8x8

PLL

4Rw2

F2

U2

4Rw2'

U2

F2

4Rw2

9x9

Edge

CoooxoooC

4Rw

U2

x

4Rw

U2

4Rw

U2

4Rw'

U2

4Lw

U2

5Rw'

U2

4Rw

U2

4Rw'

U2

4Rw'

9x9

Edge 2

CooxxxooC

3Rw

U2

x

3Rw

U2

3Rw

U2

3Rw'

U2

3Lw

U2

6Rw'

U2

3Rw

U2

3Rw'

U2

3Rw'

9x9

Edge 3

CoxxxxxoC

2Rw

U2

x

2Rw

U2

2Rw

U2

2Rw'

U2

2Lw

U2

7Rw'

U2

2Rw

U2

2Rw'

U2

2Rw'

 

[RCastle]

seriously i just want to know how to solve the last 4 tredges

 

[Spacey10]

seriously i just want to know how to solve the last 4 tredges

Just show us a picture!
It makes things 300 times easier

 

[Nmile7300]

seriously i just want to know how to solve the last 4 tredges

Watch a tutorial then

 

[xyzzy]

I'm soon getting an 8x8 & 9x9 but I can't find the parity algs online anywhere, so I had a go at working them out myself. Please let me know if they are correct and/or I have missed some, as doing them wrong can make a right mess of the cube!

Stop thinking about it in terms of "I need to turn exactly this many layers at this point in the alg" and think about it as if you were gluing layers together to make a 5×5×5 with oddly-sized layers. The algs are all the same. (Also, I guess some people might not notice this, but the 3Rw' move in the usual Lucas parity alg for 5×5×5 can be thought of as Lw' combined with an x' rotation, so all the "actual" moves are of double-layers and there's no "truly" triple-layer move in the alg. This might make it easier to translate the alg to different cube sizes.)

If you really want to be sure though, try copying your algs into alg.cubing.net. It supports cube sizes all the way up to 17.

 

[RCastle]

Can someone please point me to web page with the algorithms and cases (in pictures where they are used to solve the last 4 layers of the 5x5? The first 8 are on the top and the bottom of the cube i just need to fix the last 4 to solve it like a 3x3.

 

[Spacey10]

Can someone please point me to web page with the algorithms and cases (in pictures where they are used to solve the last 4 layers of the 5x5? The first 8 are on the top and the bottom of the cube i just need to fix the last 4 to solve it like a 3x3.

You only need one algorithm, it's a setup to slice flip slice
And, why can't you just show us a picture?

 

[zslane]

Feliks shows how to do this in his video tutorials. I'm not sure what his aversion to Feliks' tutorials is.

 

[vidcapper]

I'm soon getting an 8x8 & 9x9 but I can't find the parity algs online anywhere, so I had a go at working them out myself. Please let me know if they are correct and/or I have missed some, as doing them wrong can make a right mess of the cube!

C=corner

8x8

Edge

CooxxooC

3Rw

U2

x

3Rw

U2

3Rw

U2

3Rw'

U2

3Lw

U2

5Rw'

U2

3Rw

U2

3Rw'

U2

3Rw'

8x8

Edge 2

CoxxxxoC

2Rw

U2

x

2Rw

U2

2Rw

U2

2Rw'

U2

2Lw

U2

6Rw'

U2

2Rw

U2

2Rw'

U2

2Rw'

8x8

OLL

4Rw

U2

x

4Rw

U2

4Rw

U2

4Rw'

U2

4Lw

U2

4Rw'

U2

4Rw

U2

4Rw'

U2

4Rw'

8x8

PLL

4Rw2

F2

U2

4Rw2'

U2

F2

4Rw2

9x9

Edge

CoooxoooC

4Rw

U2

x

4Rw

U2

4Rw

U2

4Rw'

U2

4Lw

U2

5Rw'

U2

4Rw

U2

4Rw'

U2

4Rw'

9x9

Edge 2

CooxxxooC

3Rw

U2

x

3Rw

U2

3Rw

U2

3Rw'

U2

3Lw

U2

6Rw'

U2

3Rw

U2

3Rw'

U2

3Rw'

9x9

Edge 3

CoxxxxxoC

2Rw

U2

x

2Rw

U2

2Rw

U2

2Rw'

U2

2Lw

U2

7Rw'

U2

2Rw

U2

2Rw'

U2

2Rw'

Following up, I used Excel to calculate all combinations of edge parity up to 11x11...

101	5x5
1001	6x6
10001	7x7
11011	7x7
10101	7x7
100001	8x8
110011	8x8
101101	8x8
1000001	9x9
1100011	9x9
1110111	9x9
1001001	9x9
1011101	9x9
1101011	9x9
1010101	9x9
10000001	10x10
11000011	10x10
11100111	10x10
10011001	10x10
10111101	10x10
11011011	10x10
10100101	10x10
100000001	11x11
110000011	11x11
111000111	11x11
111010111	11x11
111101111	11x11
100010001	11x11
100111001	11x11
101000101	11x11
101111101	11x11
110010011	11x11
100101001	11x11
101101101	11x11
110101011	11x11
110111011	11x11
101010101	11x11

I'd hate to get the last one on the 11x11!

 

[One Wheel]

Following up, I used Excel to calculate all combinations of edge parity up to 11x11...

101	5x5
1001	6x6
10001	7x7
11011	7x7
10101	7x7
100001	8x8
110011	8x8
101101	8x8
1000001	9x9
1100011	9x9
1110111	9x9
1001001	9x9
1011101	9x9
1101011	9x9
1010101	9x9
10000001	10x10
11000011	10x10
11100111	10x10
10011001	10x10
10111101	10x10
11011011	10x10
10100101	10x10
100000001	11x11
110000011	11x11
111000111	11x11
111010111	11x11
111101111	11x11
100010001	11x11
100111001	11x11
101000101	11x11
101111101	11x11
110010011	11x11
100101001	11x11
101101101	11x11
110101011	11x11
110111011	11x11
101010101	11x11

I'd hate to get the last one on the 11x11!

I would count parities on even cubes a little differently. On 6x6, if 0000 is solved, and 1111 is OLL parity, 1001 and 0110 are different cases.

 

[vidcapper]

I would count parities on even cubes a little differently. On 6x6, if 0000 is solved, and 1111 is OLL parity, 1001 and 0110 are different cases.

Good point - and that would apply to 8x8 & 10x10, but i was only trying to list edge parities.

I would have gone even further than 11*11, but excel decimal to binary craps out at 512...

I've now found a workaround for the Excel dec2bin 512 limit...

 

[vidcapper]

Good point - and that would apply to 8x8 & 10x10, but i was only trying to list edge parities.

I would have gone even further than 11*11, but excel decimal to binary craps out at 512...

I've now found a workaround for the Excel dec2bin 512 limit...

There seems to be a pattern in the number of types of edge parity...

5x5 & 6x6 : 1
7x7 & 8x8 : 3
9x9 & 10x10 : 7
11x11 & 12x12 : 15
13x13 (and presumably 14x14) : 31

So each odd/even pair of cubes has 2x+1 types of parity than the previous pair

So 15x & 16x should have 63, 17x & 18x 127, and the newly released 19x should have 255!

And if you've seen Code Bullet's Youtube simulation of a 100x100 cube, that would presumably have 2.81745*10^14 kinds!!

Not that you'll have more than a few types on any individual solve, of course...

 

[vidcapper]

If you look at 1m35s of this 19x19 solve, you'll see edge parity that i believe needs 5 seperate algs to sort!

 

[RCastle]

well at this point i got it all figured out and i got the single parity algorithm i need to solve the single tredge parity so i'm all set now, (all other versions of parity i can turn into this one ). I got my time under 30 minutes and for someone over 50 i think that's pretty good. Thanks again to the gentleman who showed me the secret to putting the 8th solved tredge in the last slot of one layer, that was the door i needed open to solve the rest of the cube. I appreciate it when people are forthcoming with the answers asked for, now i can look to do the same for others.

 

[vidcapper]

Which do you find more challenging, centre-building, or edge-pairing (say from 6x6 upwards)?

 

[Spacey10]

Which do you find more challenging, centre-building, or edge-pairing (say from 6x6 upwards)?

Probably center paring because the pieces are all over the place, and finding one is a pain, edge paring is hard too, but it's more straight forward.

 

[Sub1Hour]

Which do you find more challenging, centre-building, or edge-pairing (say from 6x6 upwards)?

They are different and require different skillsets to be good at either one. Being good at edges helps a little bit at building centers, but it certainly doesn't make you automatically good, and vice versa. Center building is more based on how fast you are able to see and turn, while edge pairing is more centered around lookahead and more calculated moves. I think that solves ride more on the edge pairing than the center building, but I would say its easier to get better at edge pairing than center building.