Interest in a BH method website?

[dbeyer]

2.90, 2.92, 3.09, (2.09), 4.31, (8.05), 2.96, 6.36, 3.31, 3.54 => 03.95

Quite Fun ... Just lubed the cube and reassembled!

 

[dbeyer]

1. (URB UBL RDB)
2. (URB FRU BDL)
3. (URB RFD FUL)
4. (URB UBL LBD)
5. (URB FDR BLU)
6. (URB FLD UFR)
7. (URB FUL LBD)
8. (URB LDF UBL)
9. (URB RFD ULF)
10. (URB ULF DLB)

 

[dbeyer]

3.53, 2.45, 3.67, (1.93), 3.04, 2.01, (10.80), 5.63, 2.17, 3.60 => 03.88

Kind of unfair because I created the list and I knew what the 10th one was ... still pretty fast.


Quiz #10.
2.96, 2.95, 2.84, 3.79, 4.20, 2.57, 3.17, 3.21, 2.92, 3.12, 2.65, 2.87, 3.09, (4.42), 2.95, 2.90, 3.29, 2.70, 4.06, 3.76, 2.73, 3.21, 3.45, (2.68) => 3.21

Quiz #10 again.
2.84, (2.37), 2.37, 2.76, 2.64, 2.90, 2.70, 3.28, (5.10), 3.78, 3.53, 2.81 => 2.96 haha sub-3

Point and case. If a 12 move case can be done sub 3. That is a decent speed of 4 turns/sec.
The average move count for a BH corner case is 8.7 moves.
Hence, an average of 26 moves at 4tps. Could you solve corners in less than 7 seconds?

Oh, here is an optimized algorithm for this 12 move case.
The (URB DRF DLB) set.
U R2 D' R2 U' R2 U R2 D R2 U' R2 -> (U l2 U' l2 U') R2 (U l2 U l2 U') R2

 

[byu]

BH Quiz - May 22, 2009

Ten cycles, highlight next to it to see solution. Note that some cases, such as case 8, have more than one possible optimal solution.

For only pure commutators test, use the following cases (highlight below to see)
3, 4, 5, 7

Today's Specialty (Most Commonly Occurring Commutator Type): Pure

1. (URB FUL BLU) F R' U2 R F' R' F U2 F' R (Cyclic Shift)
2. (URB ULF DFL) R U2 R' U' L2 U R U' L2 U' R' (Columns)
3. (URB FLD FDR) F' D B' D' F D B D' (Pure)
4. (URB FDR LDF) D' F U2 F' D F U2 F' (Pure)
5. (URB UBL FUL)L F R' F' L' F R F' (Pure)
6. (URB UFR DBR) D2 F2 D' B2 D F2 D' B2 D' (A9)
7. (URB FDR RDB) R F R' B' R F' R' B (Pure)
8. (URB UFR DBR) D2 F2 D' B2 D F2 D' B2 D' (Orthogonal)
9. (URB LFU RUF) L' B U2 B' L B L' U2 L B' (Cyclic Shift)
10. (URB DLB LDF) U B2 U' B' D2 B U B' D2 B' U' (Columns)


---------------

Chris, I'm having some difficulties with Per Specials? Can you try to explain them a little simpler to me? I've got all other corner cases but these.

 

[dbeyer]

2.76, 2.97, (1.59), 1.76, 1.87, 2.88, 1.91, 2.62, 2.79, (3.60) => 0.00
This is with actually practicing these cases like PLLs

 

[Lucas Garron]

Shoulda done this a while ago.
Anyone know a good way to regex things like this robustly.

 

[cmhardw]

Shoulda done this a while ago.

Thanks Lucas, I updated the main page on speedcubing.com to show your applet links, with due credit of course

Chris

 

[Lucas Garron]

Shoulda done this a while ago.

Thanks Lucas, I updated the main page on speedcubing.com to show your applet links, with due credit of course

Chris

You're welcome.

Small issue: A few cases had 4 algs each (missing stars on the third), and I didn't catch the fourth. If you want them fixed, just get the updated HTML from the same link.

 

[dbeyer]

Oh, very nice and quite interesting.
URB -> UBL -> xyz
This 18 case BH time attack in as fast as 58.73 => 3.26s/case
6 cases are 9 moves, 12 cases are 8 moves.
Mind you I was quite happy with my 72s time attack (4s/case)
And happy with my 66s time attack (3.66s/case)

This is just a small subset of BH with a low move count.
I am recalling letter pairs, imagine moving at this speed, simulating fluid recall and execution!

Later,
DB

 

[blah]

Is the centers page coming out anytime soon? Or have I missed something?

 

[cmhardw]

Next is the overview of the 3x3x3 method page, but I think Daniel and I have both been very busy lately. We're working on it, albeit slowly right now.

Chris

 

[riffz]

I would love to see it.

 

[trying-to-speedcube...]

Then look at it. It's online for a few months already :/

http://www.speedcubing.com/chris/bhcorners.html and
http://www.speedcubing.com/chris/bhedges.html.

 

[blah]

Then look at it. It's online for a few months already :/

http://www.speedcubing.com/chris/bhcorners.html and
http://www.speedcubing.com/chris/bhedges.html.

Read further up. Hint: My post.

 

[MatsBergsten]

Commutator ??

One of the hardest corner 3-cycles for me is the one for UBR - BLU - RUF or the other way around. (And UBR BUL LDB and UBR RUF FDR).
The BH-arsenal for those are commutators like: F'LU2L'F LF'U2FL'. (10)

But, is this really a commutator or just an alg that happens to fit in??
However I try to pair letters together in (in groups) I cannot find an A and B
to make ABA'B'. Please group it to me

 

[blah]

One of the hardest corner 3-cycles for me is the one for UBR - BLU - RUF or the other way around. (And UBR BUL LDB and UBR RUF FDR).
The BH-arsenal for those are commutators like: F'LU2L'F LF'U2FL'. (10)

But, is this really a commutator or just an alg that happens to fit in??
However I try to pair letters together in (in groups) I cannot find an A and B
to make ABA'B'. Please group it to me

[ (L F') : (F , L) , U2 ] or [ (F' L) : U2 , (L' , F) ]. Of course, I may very well be wrong

Edit: Explanation of conjugate/commutator notation can be found in the wiki.

 

[trying-to-speedcube...]

It can be seen as a 10-move commutator with 2 setup moves and 4 moves cancelling.

F' L
(U2, L' F L F')
L' F

 

[MatsBergsten]

It can be seen as a 10-move commutator with 2 setup moves and 4 moves cancelling.

F' L
(U2, L' F L F')
L' F

Thanks Marten! Now I get it . I did not understand Blah's notation. (I know DB has used
it before but I just tried to scan all posts in this thread by him but found no explanation of it)

Edit: And now, thanks Blah for the wiki-link .

 

[stric]

Hi- new here. looking for the overview of the method page, did that ever get posted?

I found the corners and edges page only.

Thanks!!