I'm currently partecipating in a SEO competition that initially was completely white hat but now it has become suddenly a Blackhat game due to some guys using BH ways to rank 1st on Google serp. The keyword is a kinda invented and there are obviously no rules just to be at top of serp on a certain date. My issue is that it is becoming quite hard for me alone to beat one team of blackhat guys that is getting tons of spammy backlinks around the web (i think using xrumer). They have only a small blog with few posts backdated and nothing else. In such a situation what will you do to beat such guys and win this competition? Note that I'm alone and they are more than 7 guys all concentrated on one site... Also another technical question: Is it useful in your opionion to make new blogs on new domain with backdated posts (i.e. create a blog now and put posts with dates starting from 2009)?