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