I think that the whole chess thing may symbolize the trickiness to the whole LOST puzzle. There are Light and Dark sides to things, I am just concerned as to who or what is on which side. Right now with the 815's split up and the others turned friendly, at least those that are with the 815's. And now this new group We'll call them the freighters, and there is this conspiracy that there are other 815's somwhere else on the island so lets set out pieces up real fast.
1. Locke's team
2. Jack's team
5. Other 815's (Unknown)
Seems like we have 5 sides here. As locke would say, this could be more difficult than we thought!!