Parent State ID: 50
State Depth: 10
Action Taken: stack(d, b)
Action Reasoning: To achieve the goal state, we need to place block 'd' on block 'b'. Since the hand is currently holding block 'd' and block 'b' is clear, the best action is to stack 'd' on 'b'.
State Description: The hand is now empty. Block 'd' is on block 'b', and block 'b' is no longer clear. Block 'a' is on block 'c', and block 'c' is on the table. The diagram will show block 'd' on top of block 'b', with the hand empty.
Action Path: ['unstack(c, d)', 'put-down(c)', 'unstack(d, a)', 'stack(d, b)', 'pick-up(c)', 'put-down(c)', 'pick-up(a)', 'stack(a, c)', 'unstack(d, b)', 'stack(d, b)']
