n=4的一些解
..0..3..0..1..1..2..0..2....3..0..0..1..2..3..1..3....3..3..3..0..1..1..1..1
..2..1..2..1..2..2..0..2....1..2..0..0..1..3..1..1....3..3..3..3..2..2..2..2
..3..3.0...1...2...0...1...0...1...0...2...1...2...1...3...3...1...1...1...1...1...1...1...3...1
..1..1..2..1..0..0..1..0....1..2..1..1..2..1..1..2....2..1..3..2..0..1..1..3
..3..3..2..1..1..0..2..3....2..1..0..1..2..3..2..1....3..2..3..1..0..0..2..0
|