Step-2
Solving 1st/white layer

Continue with white center on bottom.
Look for a corner piece with white(a corner piece has 3 colours) that is in the “U” layer.
Look at the other two colours on the corner piece. If the other two colours are x and y, then put it above where it has to go, or in between x and y.

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Now, we are going to learn a series of 4 moves called the “sexy move”.
It is executed by doing “R U R’ U'”. Keep on doing this with the corner in a position like above until it is solved like below:

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Now, repeat until all corners are solved like above.

However, you may get an exception case where the corner is in the correct slot but twisted. In this case, hold it on the front right, then keep doing the sexy move,”R U R’ U'”, until the corner is solved.

When everything is done correctly, it should look like this:

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You have now completed the second step! I recommend scrambling the cube and practicing these two steps again to get faster. If not, you can just go ahead to the third step.