## Denny's solution for solving the Rubik's Revenge (4x4x4 cube)

Next, the Bottom Corners will be completed. This will require
you to flip your cube upside down so that the semi-completed Orange
side is facing up right, once again.

This is a two step process.

- First we need to get the four corners
in their proper positions
- Second we need to rotate them, if
necessary, to get their colors all oriented

Positioning: First
Pair

First, locate the two corners on the bottom layer that have Yellow
on them. If they are next to each other, simply rotate the bottom
until those two yellow corners are on the front side. If they
are in their proper positions, you can proceed
to the back two corners. If they need to be swapped, follow the
steps below:

- If, however, the two yellow pieces
are diagonally across from each other you will need to perform
the Diagonal Procedure.

The Diagonal Match

In the event that your yellow pieces were diagonally across from
each other, position the Yellow/Red/White corner in the front
lower left corner. This way we can move the other corner into
its correct position

The Other Two
Corners

Once the two Yellow corners have been placed, we need to work
on the two Green Corners. Start by spinning your cube until the
two Yellow corners that you have just completed are on the back
side of the cube.

The two Green Corners will either be properly positioned or they
will be in each other's position. If they are indeed backwards,
perform the following step. If they are already in place, proceed
to the next step.

Finishing the Bottom
Corners

At this point, all 4 corners are in place but they probably are
not properly rotated yet. This next step will require you to flip
your cube over again, so that the Orange Side is on the bottom.

Fortunately there is only one procedure to remember when orienting
the Bottom Corners. Unfortunately you will have to remember 7
different configurations if you intend to commit this entire process
to memory.

Match your cube to one of the 7 patterns below and then follow
the accompanying procedure. After finishing the procedure you
will either have completed the Bottom Corners or you will have
produced one of the other 7 patterns. You may need to perform
this step up to a maximum of 3 times to solve the Bottom Corners.

- The only layer you need to be concerned
with at this point is just the Red Layer. The colors on the other
layers, indicated in the images below, are only for clarity and
will not necessarily match your cube.

The next step is to put the Bottom and Top Edges
in place.

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