Nine strokes are the best. The number "nine" is closely related to ancient myths and legends. It was originally a text in dragon-shaped totem culture, and then evolved to mean "sacred" and "auspicious". Later it was borrowed as a large number. The "Book of Changes" divides one to ten into odd and even numbers, according to the ancient Chinese "Yin and Yang" According to the saying, odd numbers are yang and even numbers are yin; odd numbers symbolize heaven and masculine things, and even numbers symbolize earth and feminine things.
Since nine is the largest single-digit number, it is considered in China to be an imaginary number and a polar number to the sun. It often means the most and countless meanings, such as: Jiutian/Jiuchongxiao/Jiuchongtian( Describes the sky is very high), Jiupan (describes a winding road), Jiuyou (describes a very remote and deep place), a drop in the bucket, a narrow escape from death, a nine-nine return to one, etc.