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Step5

Solve - Complete Top Yellow face

Prerequisite:
  • A Rubik's cube with bottom and middle layers completed.
  • Also a yellow cross on top layer of the Rubik's cube.
Outcome:
  • A Rubik's cube with bottom and middle layer completed.
  • Also a complete top yellow face on top layer.

Before start solving this step, we need to check the state of the Rubik's cube.
  • Case1: Top yellow face has a yellow cross and no extra yellow corner pieces facing top.
  • Case2: Top yellow face has a yellow cross and one extra yellow corner pieces facing top.
  • Case3: Top yellow face has a yellow cross and two extra yellow corner pieces facing top. 
  • Case4: Top yellow face is completed.
Steps to be followed to solve "Complete Top Yellow face"
We need to perform different moves based on the state of Rubik's cube as discussed below.

If Case1: Hold the Rubik's cube such that the cube has a yellow on left face of the top layer left-front corner as shown below. Then perform the below algorithm which brings the Rubik's cube to Case2.
R, T, Ri, T, R, T180, Ri
Perform the moves we have for Case2 to solve complete top yellow face.


If Case2: Hold the Rubik's cube such that the cube has an extra yellow on top face of top layer left-front corner and a yellow on front face of top layer right-front corner as shown in first diagram below. Then perform the below algorithm once which should give you the complete top yellow face.
R, T, Ri, T, R, T180, Ri
If you hold the Rubik's cube such that the cube has an extra yellow on top face of top layer right-front corner and a yellow on front face of top layer left-front corner as shown in second diagram below. Then perform the below algorithm once which should give you the complete top yellow face.
Li, Ti, L, Ti, Li, Ti180, L


If Case3: Hold the Rubik's cube such that you have a yellow on front face of top layer left-front corner. Then perform the below algorithm once which should bring the Rubik's cube to Case2 discussed above.
R, T, Ri, T, R, T180, Ri
Perform the moves we have for Case2 to solve complete top yellow face.


If Case4: As you already have a complete yellow top face, you can skip this step and go to Step6.

Click the below link to watch my video on Solving Rubik's cube - Step5 (or find the same video in Videos-Demo page of this blog).

Demo: Solving Rubik's cube - Step5

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