Some.solutions.for.n=3
..0..1..7....0..5..3....0..2..1....0..1..7....0..2..5....2..0..0....0..7..0
..0..0..5....0..0..0....0..0..0....0..0..2....0..0..0....0..1..1....0..1..0
..0..0..0....0..0..0....0..3..2....0..0..0....0..0..1....0..0..1....0..6..0
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