Hi! I am fairly sure we looked at all of them. Generally, if you post the same content on more than one platform it counts as one entry. For example, if you post on Hive and then Tweet about that blog post, you can only win one prize, not two. However, if you post it twice, you get a higher score in terms of Reach (since you reach a broader audience), so you will probably rank higher and thus win a bigger prize. Does that make sense? :)