In the previous step we created a yellow cross on the top of the Rubik’s Cube but probably the yellow edges are not all fitting to the colors of the side center pieces. In this stage of the Rubik’s Cube solution we have have to fix this by repositioning these cubelets.
The algorithm switches the front-top and the left-top edges as marked on the image:
When you get to this stage the first thing you have to do is to rotate around the top layer trying to find two edges which have to be switched. Sometimes it can occur that you can’t find two pieces to swap next to each other, because you would have to swap two which are facing each other. In this case you’ll have to execute the permutation twice, as shown bellow.
Execute it twice to swap to pieces in the opposite sides of the cube. In this example the green and blue edges:
U (R U R’ U R U2 R’ U) y2 (R U R’ U R U2 R’ U)
Execute it twice to swap to pieces in the opposite sides of the cube. In this example the green and blue edges:
U (R U R’ U R U2 R’ U) y2 (R U R’ U R U2 R’ U)
The Rubik’s cube, although seemingly simple, is a complex mathematical puzzle. It is often used to teach fractions, proportions, and permutation & combination to students.
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Life is like a Rubik`s cube, once you know the secret, it`ll be as easy as can be!
Life is like a Rubik`s cube, once you know the secret, it`ll be as easy as can be!
