Some solutions for n=4
..0..1..1..1..1..3..0....1..0..0..0..0..3..1....0..3..1..1..1..3..0
..0..0..0..0..0..0..0....2..0..1..3..0..2..1....0..3..1..1..1..3..1
..0..2..1..2..0..2..3....0..0..0..0..0..2..2....0..3..1..1..1..3..2
..0..0..0..0..0..2..3....2..0..3..0..0..1..2....0..3..1..1..1..3..3
..2..3..2..3..0..2..3....1..0..1..0..0..0..2....0..0..0..0..0..0..1
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