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