n=6的一些解决方案:
..1....3....1....2....3....0....4....4....4....2....1....2....1....0....2....2
..2....1....0....4....2....3....2....2....2....4....1....2....0....3....2....1
..4....0....1....3....3....3....3....1....2....1....0....3....3....2....0....1
..1....0....2....3....0....2....3....1....0....1....2....1....0....3....4....4
..1....3....1....2....3....0....0....4....4....2....1....2....1....0....2....2
..2....1....0....0....2....3....2....2....2....0....1....2....0....3....2....1
..0....0....1....3....3....3....3....1....2....1....0....3....3....2....0....1
..1....0....2....3....4....2....3....1....0....1....2....1....0....3....4....0
..1....3....1....2....3....0....0....4....4....2....1....2....1....0....2....2