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