n=8的一些解
..2....0....3....4....0....1....5....2....5....3....1....0....3....0....0....7
..3....4....3....0....3....1....3....2....5....1....1....0....0....4....2....0
..2....2....0....1....1....0....0....2....1....1....1....0....2....2....2....0
..0....0....3....1....1....0....3....2....1....3....0....4....3....3....2....0
..3....2....3....4....3....3....3....0....1....1....1....0....2....2....2....0
..1....4....2....1....0....1....5....2....5....1....1....0....0....4....1....1
..1....2....0....1....1....1....3....0....5....0....1....0....1....3....1....1
..3....0....2....0....1....3....0....2....0....0....0....4....1....0....1....7