Hi Todd,

Thank you for your kind words. Coming to your question, for trying out this solution for 10 blocks, you need to modify just the initial_state and goal_state variables (line 353 and 360). Use a unique alphabet to denote each block (preferably A-J). While doing so just make sure that you define the predicates ONTABLE and CLEAR too as per your problem statement. Apart from this no other changes are required as such.