Rubik's Revenge

V. Solve the Bottom Corners

By now, all 4 bottom corners are in the bottom layer. There are only 8 corner pieces, and the first 4 are already on the top, forcing the last 4 to the bottom. The first step is to arrange them in the correct positions:

Turn the bottom layer until at least one bottom cube is in place		Now rotate the entire puzzle to place the fixed corner at the lower-left front.
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Repeat this sequence:		...until both lower front corner cubes are in place.
R- B+ L- B- R+ B+ L+ B-
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		What the move does: It swaps the other 3 corner cubes on the bottom layer clockwise.

You may have to repeat the sequence twice to fix the front bottom corners in place.

Variations:

For you experts, there are variations to the prior sequence that yield powerful results. There is no need to memorize these, but if you want to save a few moves, here they are:

The two front (bottom corner) cubes should now be in place. The back ones may also be in place; but if they are not, swap them with the following move:

		B+ R- B+ L- B- R+ B+ L+ B+
Swap the lower back corners

You only have to do the sequence once to swap the rear bottom corners in place.

All 4 bottom corner cubes are now in place. The next step is to rotate each corner so that their bottom sides are the correct color. In the worst-case scenario, no corner cube has a bottom side with the correct color. In this case, do the following move:

R- B- R+ B- R- B2 R+ B2

You only have to do this once. Now there is at least ONE corner cube is finished, with the right color on the bottom side.

Rotate the entire puzzle so that one of the finished corners is in the lower-left front		Repeat the move:		...until both front corners are done.
		R- B- R+ B- R- B2 R+ B2
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What the move does: It twists each of the other 3 corner cubes counter-clockwise.

You may have to repeat the sequence twice to finish the front bottom corners.

Rotate the entire puzzle so that the finished corners are in the back		Repeat the move:		...until all four corners are done.
		R- B- R+ B- R- B2 R+ B2 L- B+ L+ B+ L- B2 L+ B2
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What the move does: It turns one corner clockwise, and turns the other corner cube counter-clockwise.

You may have to repeat the sequence twice to finish all four corners.

It is now time to solve the Bottom Edges.

@ Notation / Top Centers @ Top Corners @ Top Edges
@ Middle Edges @ Bottom Corners @ Bottom Edges @ Middle Centers

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