STEP #4 (Yellow Cross)

Algorithm 4: F R U Ri Ui Fi

Goal: To form a yellow cross on the top face.

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How to do it:

1) After completing step 3, you will always end up with having formed either a dot, a 9 o’clock, a horizontal line, or a cross on the top (yellow) face. Like these:

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2) Perform Algorithm 4 repeatedly to form the cross (unless you’re lucky to already have the cross).

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CONTINUE TO STEP 5