n=5的一些解决方案：
.-2...-4...-4...-5...-5...-5...-4...-3...-5...-1...-4...-4...-5...-4...-4...-5
.-2....0....5....0....1....0....1....4....0...-1...-4....4....3....5....0...-1
.-1...-1...-2....4....0...-2....1...-1...-3....2....1....1....0...-3....5....5
..2....4....1...-3....0....2....4...-2....5....0....2...-2....5....3...-3....4
..3....1....0....4....4....5...-2....2....3....0....5....1...-3...-1....2...-3
