Ana takes one soul from a shell and places it in the following nest.
Ben takes two souls from the nest and places one in the following nest and one in the next shell which decides the wind.
Choose any nest or wind.
Take all the souls from it and distribute them one by one clockwise in the following holes. You cannot skip holes or distribute two or more souls in one hole. You can move a soul that has just been sown. If a shell now holds more souls than the rest it is rocked back indicating the wind blows from this point. The wind has to change from the previous round, sailing cannot commence until the previous shell is spilt or outmatched.