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I don't quite understand this (but it looks intriguing). I assume layer A is above layer B, which is above C, which is above D. (correct?)
But what is the relation between the sets of ranks 11-14, 21-24, 31-34, and 41-44?
Can a rook on Ab-11 move to Ab-(any number)? If not, how does a rook on Ab-11 get to Ab-44? (assuming not blocked)?