why the 4*4 or 6*6 or..2*2 cube cant be solved

[lawye]

maybe to consider the D face is fixed as green? dont need to change xOyz, just set it and solve the cube
maybe you can also try the yau method to solve 4*4

[jiraffe1]

It doesnt work because its an even number of sides and evan also couldnt be fuckt doin it