🚀 go-pugleaf

In article <45u13t$seb@prometheus.algonet.se>, peter.ejemyr@kreab.se
(Peter Ejemyr) wrote:

> Is there anyone who can point me to an easy-to-understand text about how to 
> solve Rubik's Cube (3x3x3). Or anyone got the pamphlet with solution that use 
> to come with the cube?
> 
> If so, please contact me by e-mail or telefax ASAP.
> 
> Please note; after wednesday 18 oct, this request will no longer be valid!
> 
> 
> Yours,
> peter.ejemyr@kreab.se         
> fax: +46 8 7234169                    
 This is the complete solution to Rubics Cube

I wish I could lay claim to having solved this myself.  I can,t but it
does work every time for any position of colours and faces. If you get it
wrong its because you have failed to move the pieces or faces correctly.

When you get good you can easily complete the cube in umber 1min 15 secs.
I once managed about 57 secs

At first the solution looks complicated but the steps are easy to
recognise and learn and the annotation  relatively easy to follow. 

The 8 basic steps follow a coding sequence that contains the following
letters which represent the sides of the cube.
Remember that the centre sqaure on any face is the colour that this face
will end up

In this explaination it is imperative that you know which face you start
with as the top (or upper face) of the cube �U� and which is the front
face�F�. If you loose this orientation you cannot continue

L=Left
R=Right
U=Upper
B=Back
F=Front
D=Down (or Bottom)

NB do not confuse the B (back) with B for bottom

In addittion (as in maths) a 2 following a letter  means follow the
sequence for that face twice and a sequence in brackets with a following
number means do this sequence that number of times. Hence (U2F2)3 means
turn the upper face twice followed by the front face twice for a total of
three times.  
All rotations of the face are in a clockwise direction unless followed by
a 1 in which case the rotation will be anticlockwise.
The only other symboligy used is to refer to specific squares on the cube
by a two letter code( ie) FR is Front Right  

Right here goes with the solution

First work on any side and put this in the correct sequence.This will be
called the U (upper) face

1  Put the U edges correctly  in place

2  Put the U corners correctly  in place and orientation

   When this is done turn the cube upside down D keeping the front face
towards you
   (you should now have one complete face correctly done with the centre
cubes in the correct   place to alighn with the relevant colours on the
four side facesand this correct face should be    at the bottom of the
cube in you hand)

3  Put the middle layer edges in place and orientation

   Find the relevant square that will be FR [if in middle move to U using
B3 then BU]

   a. If F side or FR is up then turn U until FR at UL then:-
        LU.(U2F2)3.U1L1
   
   b. If F side not up the turn U until FR at BU then:-
        B1U.(R2U2)3.U1B

4  Orientate U edges. 

   An even number of U sides of edges should be up

   a. If UB and UF incorrect        B.LUL1U1.B1

   b. If UB and UL incorrect  B.ULU1L1.B1

   c. If all wrong then apply step 4a Turn cube throug 90 deg. and apply
step 4a  again.

5  Put the U edges in an even permutation

   Turn U so that UF is at UF.
    If two edges are in the right place apply U. 
   
   Now 0,1,or 4 edgs will be in the right place.

6  Put U edges in place

   a. Already in place then miss this step
   
   b. One edge in place then turn whole cube so that this is at UL and
cycle the other three.

   (i) Clockwise
         R2D1.U2R1LF2RL1.DR2

   (i) Anticlockwise
         R2D1.R1LF2RL1U2..DR2

   c. If no edges right then turn whole cube to exchange UF with UR and UL
with UB
         
         R2D2B2D.(L2F2)3.D1B2D2R2

7  Put the U corners in Place

   a. All correct do nothing
   
   b. One right [not necessarily orientated] then cycle the other three. 
   
   First put correct one at URF

   (i) clockwise
         L1.URU1R1.L.RUR1U1
   
   (i) anticlockwise
         URU1R1.L1.RUR1U1.L

   c. None placed and adjacent corners to exchange
     
     First turn whole cube so as to chance UF with UB

         B.(LUL1U1)3.B1

   d. None placed and diagonal corners to exchange

         R1B2 (FRF1R1)3 B2R

8  Orientate the U corners

   First turn the cube so that a wrong corner is at URF
   
   a. If URF to travel clockwise
               (D1FDF1)2
   b. If URF to travel anticlockwise
               (FD1F1D)2

   Turn the U face only so next wrong corner at URF and apply 8a or 8d as
required and continue    until all corners ok. Return UF to UF and the
cube complete