they wont keep chiselign .. i mean

took me forever to get this far
little men wont keep chiseling

Take your builders and put them on the rock then click on details and make sure the checkmark is set to building on the people you have chosen to build, this way they will be more likely to stay - if not you will have to do a bit of baby sitting and bring them back to the rock when they wonder off. If you get somthing like this needs more research then you dont have enough skills yet to do that puzzle. Hope that helps.

AHHHH!! I didn't know you could assign (check) builders!! I've had no builders forever!