Solving Big Cubes by Logic
4.i. Solving the remaining 5 corners
To solve the last 5 corners, follow the same method outlined in the guide for solving the 3x3x3 cube using logical reasoning. For detailed instructions, refer to that guide.
In the case of even cubes, it is important to note that solving the 5 remaining corners without first addressing any edges in the final layer helps prevent a common parity error. If only 2 corners are swapped in the final layer, a 90ᐤ turn followed by a 3-corner commutator is sufficient to correct it. This step ensures that the 2-corner PLL parity error is avoided at the end.