n=3的一些解
..0..0..2..3....0..0..3..0....0..0..2..0....0..0..1..3....0..2..3..3
..0..3..2...2...0...3...2...0...2...0...0...1.0...1...2...2...1...2...1...2...1...1
..2..2..3..2....3..3..0..3....2..2..3..2....1..0..1..0....3..1..2..0
..3..2..2..1....0..2..3..0....0..0..2..1....3..1..0..1....3..1..0..0
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