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