Its quite like duplicate content. And I think Google doesn't like it.

I have noticed this over the last day or two :(

I'm not sure how we can all work on one post, and it's good that there are multiple version that have varying titles - i'm just not sure how the contest will work with 5 prizes though.

I will speak to the sponsors and see what is best, and I think next time around there will be a different format.