You and a rival archaeological unit have been contracted to excvated a know pagan graveyard. You have both been given marked out grid areas in which to excavate a number of burials, both adult and child. Curiously there are an equal number of burials in each grid area, and curiouser still, you know where the opposing team's bones are buried.
Using your skill and judgement you must excavate your assigned area before the opposing team does. Use your trusty trowel (your mouse) to excavate the fine piece of lawn you have been allocated and recover all the skeletal remains.
You and the opposing team have to take turns to excavate a grid area. Please note, these pagans were a tidy culture and never placed their burials one on top of another, and left very few grave goods.
"And you only have 3 days to do it in...."