system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Can kitesurfers sail up against the wind?


assistant
Yes, kitesurfers can sail up against the wind by edging their surfboard upwind at a slight angle relative to 90 degrees crosswind. Depending on the equipment and skill, kitesurfers can generally achieve an upwind angle of ~20 degrees.