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