It's happened. You knew it was coming. The Like-Gate Ban. As of November 5, 2014, the policy is now in effect. No longer can you require a user to Like your page to gain access to contests, content, apps or anything else. And you know what? I'm a big fan of this change. At Marketing Ninjas we've always said that the quality of your fans is much more important the quantity of your fans.
Here's the thing: Facebook did this because they want people (A.K.A. your fans) to like your page because, well, they like you (and your company and your brand). Not because they like the contest you happen to be running.