Some solutions for n=4
..0..1..0..1..2....0..1..0..1..2....0..1..0..1..2....0..1..0..2..1
..1..0..1..3..4....1..0..1..0..3....1..0..3..2..3....1..0..1..3..0
..2..1..0..4..5....2..3..4..1..0....2..1..0..1..4....2..1..3..4..5
..5..2..1..2..4....1..4..5..0..5....0..5..1..0..1....3..4..5..0..4
..3..4..2..3..5....4..2..4..1..2....4..3..2..4..2....0..5..0..1..5
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