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