# A Rubik Cube to Solve

###### Using this Cube.

No need for any lengthy description – just play with the buttons on offer and it should quickly become clear what they do. What isn’t so clear is that you can turn any visible cube face clockwise by clicking on the centre block of that face and turn any visible cube face anti clockwise by clicking on any one of the four edge block faces that surround that centre block face.

###### Solving a Scrambled Cube.

Cube faces are identified by their centre block colour. So the red face is that face with red at its centre, etc. This computer cube always has a yellow Top face and a white Bottom face. The cube solution described below completes the bottom layer first, then the middle layer and finally the top layer. At any stage in the solve process you can store the cube’s state using the Store button. Then, if you subsequently make a mistake you can return to that stored state using the Restore button. I suggest storing the cube state at the end of each completed stage.

The solve help diagrams below all show the blue face as the front face and consequently in those diagrams red is the right face, green the back face and orange the left face. But when doing a move sequence any one of the side faces can be the front face during that move sequence. Put your chosen front face where the blue face is in the diagram and the move sequences illustrated involve face rotations relative to your front face. Once a move sequence is completed you will most likely need to establish a different front face for the next move sequence.

Letters below the solve diagrams are face move sequences. The capitalised letters call for a clockwise turn of a face (click its centre block or the clockwise colour button). The lower case letters require a counter-clockwise turn of a face (click an edge block on that face or the anti clockwise colour button). F means turn your chosen front face clockwise, f means turn the front face anticlockwise, R means turn the right face clockwise, r means turn the right face anticlockwise, L means turn the left face clockwise and l means turn the left face anticlockwise. You can perform these rotations using the button controls or by clicking on the cube faces.

Arrows on the diagrams at stages 2, 3, 5 and 7 indicate how a block or a block and its faces will be moved by that move sequence. Arrows at stage 4 indicate how two top edge blocks can be flipped by that move sequence. Arrows at stage 6 indicate how three of the four top corner blocks can be moved by that move sequence.

Further help for individual stages can be found below the diagrams.