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 Post subject: Helicopter cube ( Badly Help)Posted: Tue Dec 28, 2010 2:10 am

Joined: Sat Jul 11, 2009 6:20 am
Hi Guys, i just want to ask some help for Helicopter cube solution, my Helicopter cube is almost a year next month and then i still dont know how to solve it, any one could explain the solution in more precise , simple , short and crystal clear explanation including also the notation and how the pcs works , there is one video in you tube at first he just said " i always used to solve first the white said " then why not tell us how to solve the white side or any face's you choose to solve first.. any one pls..

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Tue Dec 28, 2010 3:12 am

Joined: Mon Dec 08, 2008 1:45 am
Location: New Zealand
The helicopter cube has two types of pieces, the centers and the corners. The centers are grouped in 4 orbitals. The centers cannot swap orbitals unless you do jumbling:

Attachment:
File comment: Orbitals

S1310018.jpg [ 34.56 KiB | Viewed 5879 times ]

The Centers adjacent to a imaginary skewb cut belong to the same orbital.

The solution outline is as follows:
1: Centers of one side
2: Corners of the same side, and the centers around those corners
3: Solve the rest of the centers
4: Solve the last 4 Corners

Algorithms:
1: RU BU LU FU (FRU Corner Counter Clockwise rotation)
2: FU LU BU RU (FRU Corner Clockwise rotation)
3: FU RU FU (Swaps 2 centers around the RU edge)
4: RU FU RU (Swaps 2 centers around the FU edge)
5: FU FR FU (Swaps 2 centers around the FR edge)
6: RU FR RU (Swaps 2 centers around the FR edge from a different orbital than in 5)
7: FU RU FU RU (Cycles 3 centers for step 3)
8: FR RU FU FR FU RU FR FU RU FU RU FU RU (Swaps 2 Corners FLU and FRU)
9: RU LU BU RU LU FU RU LU BU RU LU FU (Rotates 2 Corners FLU and FRU)

I only think of 8 and 9 as the main algorithms I use, the others are just common intuative moves.

Step 1: Solve the Center pieces of one side

This is completely intuative and you should be able to do this very easily.
Attachment:
File comment: 1

S1310008.JPG [ 120.72 KiB | Viewed 5889 times ]

Step 2: Solve the Corners of the same side and the adjacent Center pieces

Start by placing a corner above where it needs to go, facing the opposite way. The solved black centers are on the DOWN side, and the Corner has the Black sticker on the UP side:
Attachment:
File comment: 2

S1310009.JPG [ 117.03 KiB | Viewed 5889 times ]

The Blue center on the RU edge needs to rotate next to the corner, using algorithm #3:
Attachment:
File comment: 3

S1310010.JPG [ 118.66 KiB | Viewed 5889 times ]

Algorithm #4 is used if the center to be placed next to the corner is on the FU edge.
Now I simply do a FR turn to place the corner into it's position.

If a corner is oriented incorrectly in the spot above where it needs to go, you do algorithm #1 or #2 depending on which way it needs to be rotated. For example, the corner in the image below needs to be rotated Counter Clockwise,

Attachment:
File comment: 5

S1310011.JPG [ 116.41 KiB | Viewed 5879 times ]

so we do algorithm #1:

Attachment:
File comment: 6

S1310012.JPG [ 119.53 KiB | Viewed 5879 times ]

The center piece to be placed next to the corner may be already in position, when the corner is not:

Attachment:
File comment: 7

S1310013.JPG [ 117.89 KiB | Viewed 5879 times ]

For this case, we do algorithm #6. The result:

Attachment:
File comment: 8

S1310014.JPG [ 118.36 KiB | Viewed 5879 times ]

Algorithm #5 can be used if the center is on the FRONT side of the edge.
Again we do FR to put the corner and centers in place.

We repeat the corner and center pairing until we finish the first half:

Attachment:
File comment: 9

S1310015.JPG [ 120.37 KiB | Viewed 5873 times ]

Step 3: Solve the remaining Center pieces

This step is difficult to explain, as it mainly consists of intuition. Algorithm #7 cycles just 3 Centers, and is very useful. Using just FU, RU, BU, and LU turns, you can complete this step:

Attachment:
File comment: 10

S1310017.JPG [ 118.98 KiB | Viewed 5873 times ]

Step 4: Solving the last 4 corners

In the image above, you can see that the FRU and FLU corners are in the right place, and just need orientating. To rotate the corners, we use algorithm #9. This rotates the FRU corner Clockwise, and the FLU corner Counter Clockwise. If they need rotating the opposite way, you add a FU at the start of algorithm #9, and do not do the FU at the end of it.

-Mark-

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Last edited by Door on Tue Dec 28, 2010 4:49 am, edited 4 times in total.

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Tue Dec 28, 2010 3:36 am

Joined: Mon Aug 27, 2007 3:50 pm
Location: Copenhagen, Denmark
Thank you Door! I cant wait for your next post in this thread!

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Tue Dec 28, 2010 4:43 am

Joined: Mon Dec 08, 2008 1:45 am
Location: New Zealand
The last 2 corners:

Attachment:
File comment: 11

S1310019.JPG [ 117.25 KiB | Viewed 5866 times ]

The two corners here need to be swapped rather than rotated. To swap the FRU and FLU corners we use algorithm #8. This will leave them in their correct positions, and 2/3 of the time they will need their orientation fixed with algorithm #9.

Sorry this was so long, I tried to be as thorough as possible!
I hope this helped you solve your helicopter cube.

-Mark-

_________________
My Shapeways Shop!
Tony Fisher wrote:
A rare puzzle is one that is only lightly cooked.

Kelvin Stott wrote:
Squiggle is such a funny word to say out loud. Squiggle!

I am with Frank's Family

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 Post subject: Helicopter cube (Badly Help)Posted: Fri Jan 28, 2011 12:06 pm

Joined: Tue Mar 24, 2009 12:52 pm
How to solve Helicopter Cube. The instruction on one page (very convenient for a seal): here.

Example of the decision Helicopter Cube from a non-standard situation by standard algorithms with the help of intermediate turns:

?:

!:

Last edited by pytlivyj_1 on Sun Jan 30, 2011 9:48 am, edited 1 time in total.

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Sat Jan 29, 2011 12:20 am

Joined: Mon Oct 18, 2010 10:48 am
I find that solving the cube (nonjumbled) is much easier to do corners first. Use LRLRLR to switch four pieces (two 2-cycles). That is, in my opinion, much easier to understand and implement than centers first, as it uses only one minimal algorithm (LRLRLR).

For jumbling, one additional algorithm is needed to switch two center orbits, and all one must do is solve each center with a disregard for the last center solved, and this will put pieces in the correct orbits. A third algorithm is then needed if you receive parity.

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 Post subject: Helicopter cube (Badly Help)Posted: Sat Jan 29, 2011 3:52 pm

Joined: Tue Mar 24, 2009 12:52 pm
Write the decision completely. Your algorithm (LRLRLR) is absolutely nothing gives. Probably you were mistaken at a spelling of algorithm.

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Sat Jan 29, 2011 4:59 pm

Joined: Mon Dec 08, 2008 1:45 am
Location: New Zealand
pytlivyj_1 wrote:
Write the decision completely. Your algorithm (LRLRLR) is absolutely nothing gives. Probably you were mistaken at a spelling of algorithm.

I think he must mean (L F)*3

NType3 wrote:
I find that solving the cube (nonjumbled) is much easier to do corners first. Use LRLRLR to switch four pieces (two 2-cycles). That is, in my opinion, much easier to understand and implement than centers first, as it uses only one minimal algorithm (LRLRLR).

For jumbling, one additional algorithm is needed to switch two center orbits, and all one must do is solve each center with a disregard for the last center solved, and this will put pieces in the correct orbits. A third algorithm is then needed if you receive parity.

This is a simple and much more easy way to understand how to solve it. It is like the beginner method for a Helicopter Cube. The method I mention is a bit harder to understand, but is more efficient, just as for the 3x3x3 you have more advanced and more effiecient methods.

-Mark-

_________________
My Shapeways Shop!
Tony Fisher wrote:
A rare puzzle is one that is only lightly cooked.

Kelvin Stott wrote:
Squiggle is such a funny word to say out loud. Squiggle!

I am with Frank's Family

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Sat Feb 05, 2011 1:04 am

Joined: Sat Jan 15, 2011 12:34 pm
I'm having some difficulty on the helicopter cube with the jumbling... I know th 20 degree turns but I've gotten stuck on literally 2 triangles out of place. (most of the alg deal with 4 out of place)

Here is a picture of the cube.
The back sides and the bottom are completely solved.

Could anyone help me with the alg for this? Or some thinking that goes along with only switching two triangles.

 Attachments: IMG_1252.jpg [ 35.47 KiB | Viewed 5575 times ]

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 Post subject: Helicopter cube (Badly Help)Posted: Sat Feb 05, 2011 9:48 am

Joined: Tue Mar 24, 2009 12:52 pm
I can not understand: for what to write the same questions in the same theme? Really so it is heavy to see all messages in this theme?

P. S. Or you ask about more optimum decision for smaller quantity of turns?

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 Post subject: Re: Helicopter cube (Badly Help)Posted: Sat Feb 05, 2011 10:02 am

Joined: Sat Jan 15, 2011 12:34 pm
pytlivyj_1 wrote:
I can not understand: for what to write the same questions in the same theme? Really so it is heavy to see all messages in this theme?

P. S. Or you ask about more optimum decision for smaller quantity of turns?

I'm looking for an algo that can switch the two centers in the located picture. I don't care too much about the corners. That's pretty much it.

edit: nevermind! got it!

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Sun Apr 10, 2011 10:29 pm

Joined: Sat Mar 24, 2007 6:58 pm
Location: Louisiana, US
Best graphical solution ever written for the Helicopter Cube. You'll have to trudge through several pages of Google search to find it:

Basic Solution:
http://www.shamblessoftware.co.uk/d_puz ... r_solution

Unjumbling:
http://www.shamblessoftware.co.uk/d_puz ... unjumbling

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Mon Jun 20, 2011 12:18 pm

Joined: Fri Nov 05, 2010 7:50 pm
I have this issue on my Helicopter Cube. Anyone know how to fix it?

ALL OTHER SIDES ARE SOLVED. (just thought I'd make that clear)

 Attachments: File comment: All other sides are solved P1010938.JPG [ 1.13 MiB | Viewed 5133 times ]

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Mon Jun 20, 2011 1:14 pm

Joined: Sat Mar 06, 2010 8:20 pm
Did you jumble it?

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2x2 PB: 2.36
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2nd layer using Fisher parts

I very much hope you mean Fisher Cube parts.

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Mon Jun 20, 2011 1:25 pm

Joined: Sun May 17, 2009 1:33 pm
Location: USA, North America, Planet Earth, Solar system, Milky Way galaxy, Universe
Exchange two identical centers in the top (orange) layer using the jumbling move, and then this should be able to be solved normally after that.

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-sj

NEW VIDEOS-
3x3x3 stop-motion solve
Meffert's new Pyraminx Crystal solve
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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Mon Jun 20, 2011 8:11 pm

Joined: Thu Dec 31, 2009 8:54 pm
Location: Bay Area, California
Monopoly wrote:
Exchange two identical centers in the top (orange) layer using the jumbling move, and then this should be able to be solved normally after that.

If you could actually exchange two orange centers with no side effects that would leave him in the exact same position he is in now. I don't know what everyone else uses for a jumbling 3-cycle but the one I use only needs 3 setup moves to fix this case.

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Mon Jun 20, 2011 9:12 pm

Joined: Sun May 17, 2009 1:33 pm
Location: USA, North America, Planet Earth, Solar system, Milky Way galaxy, Universe
bmenrigh wrote:
Monopoly wrote:
Exchange two identical centers in the top (orange) layer using the jumbling move, and then this should be able to be solved normally after that.

If you could actually exchange two orange centers with no side effects that would leave him in the exact same position he is in now. I don't know what everyone else uses for a jumbling 3-cycle but the one I use only needs 3 setup moves to fix this case.

Exchanging the two orange centers will also swap two other centers (I believe; at least, that's how I usually solve variants of this situation.) and two corners, as well as screwing up the 'solved' pieces, but at least it gets the puzzle to a state solvable without jumbling. There are probably more efficient methods, but in my experience (admittedly, not a lot...) this works fine.

_________________
-sj

NEW VIDEOS-
3x3x3 stop-motion solve
Meffert's new Pyraminx Crystal solve
QJ 4x4x4 solve

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Mon Jun 20, 2011 10:55 pm

Joined: Mon Jun 07, 2010 8:37 am
Location: Waco, TX and South Bend, IN
bmenrigh wrote:
I don't know what everyone else uses for a jumbling 3-cycle but the one I use only needs 3 setup moves to fix this case.

In solving this I only use one set-up move - either turn the black/orange edge by 180 degrees or the orange/green edge by 180. After that I do a 34-move algorithm to switch three edges. However this is probably far from optimal, but it's the way that I figured out how to do it.

Chris

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Tue Jun 28, 2011 6:21 pm

Joined: Wed Apr 13, 2011 8:37 am
Location: Germany
stardust4ever wrote:
Best graphical solution ever written for the Helicopter Cube. You'll have to trudge through several pages of Google search to find it:

Basic Solution:
http://www.shamblessoftware.co.uk/d_puz ... r_solution

Unjumbling:
http://www.shamblessoftware.co.uk/d_puz ... unjumbling

Thanks for this links. I tried this to so solve the parity, e.g. permute only 2 centers.
I don't understand the paintings on this website, so the helicoptercube was scrambled.
But I had luck and the parity was away. So I was able to solve my heli with the algs from

pytlivyj_1 and Door. Thanks

Can someone show and explain the paritiy alg ? To fix the paritiy the heli must jumbled. I tried to put each color in a orbit รก 6 centers with jumbling turns. There was nevertheless a parity.

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Tue Jun 28, 2011 6:48 pm

Joined: Mon Apr 13, 2009 3:36 pm
Location: Chattanooga, TN
I tend to solve all the corners first and then solve centers. Using algs that move centers around and solve top side. Then I solve the rest of the "top layer", turn it over and solve the rest of the sides and top layer.

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Wed Jun 29, 2011 7:36 am

Joined: Wed Apr 13, 2011 8:37 am
Location: Germany

I found a understandable solution on an indonesian website. The explanation is on english.
http://tlpuzzle.weebly.com/helicopter-cube.html

This helped me.
I hope it helps many people too.

Cheers,
Andrea

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 Post subject: Re: Helicopter cube (Badly Help)Posted: Fri Jul 01, 2011 4:08 am

Joined: Wed Apr 13, 2011 8:37 am
Location: Germany
pytlivyj_1 wrote:
How to solve Helicopter Cube. The instruction on one page (very convenient for a seal): here.

Thank you for your nice work. I use your ( centers first) method. It's more easy than corners first, i think.

The pictures with strange solveabe permutation of centers are incorrect orbits.
Whats better ? First solve Orbits, or make the jumbling-move later ?
To solve a pattern ( by example mezon) i don't loock at orbits and solve it later.

Cheers,
Andrea

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Mon Jul 04, 2011 3:56 pm

Joined: Fri Nov 05, 2010 7:50 pm
OK, now I have a hard time trying to get this back to a cube form. My mom said it looks like it has fangs.

But seriously, how do I fix this?!?! I don't care about colors yet, just shape.

(The picture is reversed. Also, the other sides are cubic).

EDIT: I figured it out, but if anyone wants to show how they solved it, feel free!

 Attachments: File comment: Fanged Helicopter Cube Photo 1.jpg [ 72.11 KiB | Viewed 4741 times ]

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Tue Jul 05, 2011 8:27 am

Joined: Wed Apr 13, 2011 8:37 am
Location: Germany
Hello,

for the configuration posted by RizDub I created a solution.

move 2 spikes from top/front to left/front
FL+,FU,FL,FU+

move the 2 spikes to down/left
DL-,LF,DL,LF-

move the 2 spikes to down/front
DL+,DF,DL,DF+

move the 2 spikes to front/left
FL-,DF,FL,DF-

move the 2 spikes back to up front
like startposition but flipped

FL+,FU,FL,FU+

now solve it easy

FU-,UR,FU,UR-

I made a litte Video without sound but small textual explanation

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 Post subject: Re: Helicopter cube ( Badly Help)Posted: Tue Jul 05, 2011 12:11 pm

Joined: Fri Nov 05, 2010 7:50 pm
thanks so much!!

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