Step 2 - The Waterline Concept for the Bottom and Middle Layers
Now
that we have the cross, let's turn the whole cube upsidedown so that the top face
seen here, is on the bottom, and the white face is on top... |
Like
this. White is now our top face. Notice I have turned off most of the colours, except for the centre colours
(so we know which face is which). Our objective in this section, is to solve both
the bottom layer and the middle layer at the same time.
and I have added two neutral colours.
The grey represents the cubies on the top layer
and indicates that these pieces are unimportant. They can be any colour, and it
doesn't matter how they are mixed up.
The aqua colour, in the same way, indicates unimportant
cubies in the bottom and middle layers. I call this, "The waterline".
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The
reason I call it this, is because, we are trying to solve the bottom and middle
layers at the same time, and during this process, the bottom edges that contain
a blue sticker are not allowed to go above the waterline. See how in this example,
a single clockwise turn of the yellow face brings it just underneath the Waterline.
This is acceptable. But to go above the Waterline is not acceptable. Remember BLUE - WATER - FISH DROWNING ABOVE WATER. I'm not trying
to be restrictive; this becomes a helpful guide to not destroying the colours
too much if you make a mistake.
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When solving the first two layers, we work with an edge cube and a corner
cube and join them together into a pair. This pair is then placed into a "hole"
under the Waterline. But we need to always get these pieces onto the top layer
before moving them together under the Waterline. When we do finally get a pair onto
the top layer (or above the Waterline), they should look like one of the two following situations...
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Situation
No 1.
A corner cubie that has a blue sticker, must be matched up with the edge cubie
that contains both of it's other colours. Eg. This BLUE, YELLOW & RED corner
cubie, take away the blue, must be now match with the YELLOW & RED edge cubie.
Seeing we are only one move away from them being together, you can consider
this situation to be complete and ready to go. If you get the pair in this situation, it is very good. The second favoured
situation is this:
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Situation
No 2.
Both cubies are already together on the top layer. If you get your pair in
this situation, it is also very good.
You'll see both of these situations happen four times in the following section.
Let's move onto Step 3.
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