Monday, March 31, 2008

Speedsolving Forum

http://www.speedsolving.com

F2L Keyhole Method

Will try this next:

F2L Trick - fewer moves

Petrus Method

first video Petrus method

second video Petrus method


The method so far:


STEP 1:

2 x 2 x 2
~~~~~~~

(bottom left, orange facing me, white facing left, top white facing up with white blue edge on right)
Li Li Bi

Twist top to match 2 x 2 edge with sides

To solve orange-blue edge:
(white 2 x 2 facing up on top left, orange facing you, blue facing left)
put orange blue edge on bottom with orange facing me and blue facing down,
protect ...
U
Twist orange-blue into place:
F
Put back:
Ui


STEP 2:

(2 x 2 x 2 bottom left corner, orange facing me, white facing left, blue facing down)
To solve top left corner, White-Green-Orange:

R-U many times until green faces up then twist to top left corner.


To solve the orange-green:
put ornage-green edge on top layer, then protect white-green-orange:
L

Twist green-orange to front, then put the white-green-orange back:
Li


To solve top left green-white:
Protect 2 pieces (white-green-orange corner & green-orange edge) first by turning them away:
Ui Ri
...

Then put them back:
R U


STEP 3:

video 3a Petrus Method

You are now 2 x 2 x 3 with green facing left blue facing right, white facing back and
orange facing down.

yellow centre facing u and red centre facing up.
facing u align red edge on left
facing up align yellow edge on back

then do:

Li Ui L

and keep repeating until all bad edges fixed. You will know when they are fixed when
u are able to get a yellow cross on top and a red cross in front. Note that u will need to twist
the top and front until eventually u can get the crosses.


STEP 4a:
video 3b Petrus Method

The above vid is actually step 4a, step 3a and 3b has been combined in video 3a.

At the end of this stage

You would have F2L solved except for the bottom right corner+edge :
yellow-orange-blue (yellow facing u, blue facing right and orange facing down).

This is where the video ends...


Here is where I go to Lar Petrus' original website to learn up the rest of the steps completely, vis, Step 4b to Step 7 :

http://lar5.com/

Step 4b:
Insert the last corner + edge on the right bottom.

There are 3 cases:

Case 1: Orange corner facing back, different edge color facing up.

Same as Fridrich F2L - twist corner to meet edge then immediate insert into bottom.

Case 2: Orange Facing Up

Bring edge into front face. Bring corner into front face.
Align edge on left and twist corner Ui to stack on the edge.
Then insert as in Fridrich F2L

Case 3: Orance corner facing back right same edge color facing up.
Do Ui Ui to bring corner to top left with orange facing you.
Do Fi to bring corner to bottom left front. Do Ui to bring edge to align on left edge.
Do U to attach corner to edge on top left.
Then insert as in Fridrich F2L.

Step 5:
Steps 5, 6 and 7 are all LL.
Step 5 is to position all corners to correct corners. This is done by swapping two corners at a time. Twist the top Layer until you get as many corners in the correct corners. Then for the remaining two wrong corners do Niklas.
The Niklas algorithm:

Niklas: B Ui Fi U Bi Ui F U U
[ Niklas Barks Until Feisty Umbrella Begins Unfolding For Ursula Undress ]

You may need to do this twice if all four corners are wrong.

Step 6:
Here, all corners are correctly placed in their respective corners.
Now we need to twist the corners. The algorithm is called Sune:

There are 3 cases:

If you have 0 solved corner, put the left facing red corner on top left (called the target), then do Sune.

If you have 1 solved corner, put it on top left then do Sune.

If you have 2 solved corner, put the non-red left facing unsolved corner on top left.

You may need to do Sune two or three times to get all to top to become red.

Sune: R U Ri U R Ui Ui Ri
[ SunTzu Ran Up River, Useless Rogue Using UI Radio ]

Step 7:
This is the final step. By now the top layer is now all red facing up.
Leaving only 3 or 4 edges in wong edge.

If there is 1 correct edge, put it facing right and do Alan. You may need to do Alan, two or three times to get all the edges to permutate to the correnct edges.

With the correct edge facing right. Look down the cube fom the top. If the edges need to permutate anticlockwise, then do this Alan:

LL Ui B Fi LL BiF UiLL [ LUiBe FiLL BiF UiLL ]

However, if you notice that the edges need to permutate clockwise, then orient the correct edge facing left and do this Alan's Mirror:

RR U Bi F RR B Fi U RR [RRUBi FuRR BuFi URR ]

Tuesday, March 25, 2008

Saturday, March 22, 2008

pogobat's Basic LBL Rubik Cube Technique

pogobat LBL Rubik Cube solution video at youtube Part 1

pogobat Part 2

how to solve faster

six times to return to original state: Fi U Li Ui

Layer 1 - To Flip Edge
Fi U Li Ui [ Fill Up Little Undie ]

Layer 1 Corner
Ri Di R D [ RiDi RoD ]
if green facing left:
L D Li Di
if green facing down:
Ri Di Di R D then RiDI RoD

Layer 2 Left Edge
Ui Li U L U F Ui Fi [ Until LiZhen Undresses, Let Uncle Fuck Umi First ]

Layer 2 Right Edge
U R Ui Ri Ui Fi U F [ Upper Racks Uniquely Ripe Umi Fires Up Fat]

Layer 3 - To get a Cross
a) To Get an L (Start >)
b) To Get an Line (Start _! )
c) To Get A Cross (Start ---)
F R U Ri Ui Fi [ FRU Rigid Unzipped Floppies ]


Layer 3 To Line Up Cross

if (Start Top of Cross Lined up, Rt of Cross Lined Up)
{
R U Ri U R U U Ri U [ Remember Use Right Udder Rod Unless Useless Right Udder ]
}
else if (Start Bottom of Cross Lined Up, Top of Cross Lined up)
{
R U Ri U R U U Ri [ Read URL Rites Under Rose's Undersized U - Ring ]

}


Layer 3
(If got right corner, start with it bottom right)
U R Ui Li U Ri Ui L [ U R Unique LiZhen, U Risk Undying Love ]

(if some corners solved, put unsolved on bottom right)
Ri Di R D [ RiDi RoD ]


Is this the same, but in text:

Beginner's Solution to the Rubik Cube