n=4的一些解
..0..0..0..0..0..0..0....0..0..0..0..0..0..0....2..2..1..0..0..0..0
..0..1..1.0...0..1..0...1...0..1..0...0...0...0...2...1...0...0...0...0...0...0
..1..2..2..1..1..2..2....1..2..2..1..0..0..0....1..1..0..0..0..0..0
..1..2..2..1..1..2..2....1..2..2..1..0..0..0....0..0..0..0..0..0..0
|