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