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