Some solutions for n=6
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..1....0....0....1....1....1....1....1....1....1....1....1....1....1....1....1
..2....0....0....2....0....2....2....0....2....1....2....1....2....0....2....1
..3....1....1....2....2....1....3....0....3....2....2....0....1....1....1....2
..1....1....2....2....3....3....2....0....3....3....1....2....3....2....0....2
..1....0....2....2....0....4....0....2....4....4....1....1....4....3....2....3
..0....0....0....0....0....1....3....2....0....4....2....0....4....1....1....4
..4....2....2....0....3....2....0....0....3....3....2....1....2....4....1....1
..0....3....0....1....3....2....2....3....2....2....3....2....3....4....0....0
..3....3....3....0....4....2....0....3....0....1....1....1....3....2....2....1
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