How can we understand the comments ?
http://www.josekipedia.com/#path:qdocIf black were to tenuki, white could play 3-3 to wrest away some profit, can build outward influence by pressing with 3 or start a pincer attack by playing say 11.
As for black, against the approach he can adopt solid measures such as 3, 6, and 11, Otherwise, a positive, attacking direction could be adopted by a pincer attack on the white stone with 4,5,7,8,9, or 10.
You could say that the variations against the small knight's approach to the three-four point are the richest among all joseki.
Rui Naiwei, 9D