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