You are trying to bolt two metal pates together and they need to
positioned precisely relative to one another. If we put a bolt in and tighten
it we will be unable to position the parts after doing this. However, if we
position the pieces first we wont have a free hand to insert the bolt.
A solution is clearly to insert the bolt, part tighten it and then position the
- Compare this with the Sussman anomaly problem.
- Solve this problem using Goal Stack planning.
- Solve this problem using Constraint Posting.