n=8的一些解
..0..0....0..0....0..0....0..1....0..0....0..0....0..0....0..1....0..0....0..0
..0..1....0..0....0..2....0..1....0..0....0..0....0..0....0..1....0..2....0..0
..0..1....0..0....1..1....2..3....1..1....0..0....0..1....1..1....1..1....0..2
..2..2....0..0....1..3....1..2....1..1....2..2....2..3....2..3....1..2....3..3
..1..1....1..2....1..3....2..2....2..2....1..1....1..1....2..3....1..2....1..2
..1..2....2..2....3..3....3..3....1..1....2..3....2..2....2..2....1..3....1..3
..2..3....2..3....2..2....2..2....2..3....1..1....2..3....3..3....3..3....2..2
..1..2....1..1....2..2....2..3....2..2....2..2....1..2....2..2....1..2....3..3