Some solutions for n=9
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..1....1....1....1....1....1....1....1....1....1....0....1....0....1....0....1
..2....2....2....2....2....0....0....2....0....2....1....2....1....2....1....2
..0....3....3....3....3....2....0....3....0....0....2....3....0....3....1....1
..3....2....4....4....2....3....0....4....2....2....3....4....2....1....0....0
..4....4....2....0....0....4....2....0....0....3....4....3....3....2....1....3
..3....0....5....3....0....5....3....4....0....0....3....2....0....0....2....4
..0....0....3....2....3....3....0....2....1....3....5....1....2....4....1....3
..1....5....4....5....1....0....2....0....3....1....0....2....3....1....1....4
..4....3....5....1....3....1....0....0....0....4....1....1....4....0....2....1
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