n=6的一些解
..0..2....0..0....2..4....0..0....0..0....0..3....0..0....2..3....0..2....0..0
..0..4....0..3....2..4....0..2....1..4....0..3....0..0....3..4....0..2....0..1
..2..4....2..0....3..2....1..3....2..2....0..3....0..4....4..0....0..3....0..2
..3..0....2..0....4..1....2..1....3..1....0..3....1..0....4..0....0..3....1..0
..3..0....3..4....4..4....3..2....3..3....0..3....4..0....4..0....2..0....2..0
..3..1....4..2....4..4....3..2....4..3....0..3....4..4....4..1....2..0....2..4