n=3的一些解
.-6...-9...-8...-2...-9...-6...-9...-9...-8...-7...-9...-6...-9...-8...-6...-9
.-3...-8...-6...-2...-5...-5...-6...-6...-5...-5...-3...-6...-4...-8...-6...-3
.-3...-3...-3...-1...-1...-5...-4...-4...-4...-5...-3...-5...-1...-5...-3...-3
.-3...-2...-3...-1....2...-2...-1...-1...-4...-5....0....0...-1...-1....0...-2
.-2....2...-1....0....2....0....0....2....0....2....1....0...-1....1....2...-1
..3....6....6....1....2....0....3....5....5....4....1....2....0....5....2....1
..6....7....7....2....4....9....8....6....7....7....5....7....7....7....3....8
..8....7....8....3....5....9....9....7....9....9....8....8....9....9....8....9