Solving Big Cubes by Logic
4.b. Solving the edges of 3 sides in the first layer
Once again, utilize the "go, swap, and back" movement with necessary setups, if required.
At times, you may come across edges of the same color grouped together, or it may be possible to group them by performing inner layer movements parallel to the upper layer. In such situations, it becomes feasible to swap blocks consisting of two or more edges simultaneously. It merely requires careful observation.
When the edges of interest are located on the sides, visualizing and executing the swap becomes quite straightforward. Refer to the example provided in Figure 4.3 for further clarification.
If an edge piece is located on layer D and has an unfavorable orientation, utilize the "free layer" to reposition it onto a side border. Refer to the example illustrated in Figure 4.4, where the "free layer" is highlighted in pink and the desired edge piece is shown with a misaligned orientation.
To determine the correct colors on the side faces, follow the central piece in the case of odd cubes, similar to the 3x3x3 cube (where the central pieces always maintain their relative positions in space). Refer to the example depicted in Figure 4.5, which illustrates this concept for the case of a 5x5x5 cube.
For even cubes, it is advisable to first solve two neighboring corners in the first layer before proceeding with the edges of the 3 upper borders. This approach provides indications of the correct colors for the 3 lateral faces. Refer to Figure 4.6, which demonstrates this technique for a 6x6x6 cube. These two corners can be solved using the "go, swap and back" movement, as previously covered in the guide for solving the 3x3x3 cube.
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