Parent State ID: 41
State Depth: 11
Action Taken: unstack(d, c)
Action Reasoning: To achieve the goal state, we need to move block 'd' from on top of block 'c' to the table. This will allow us to place block 'c' on the table, which is necessary for the goal configuration.
State Description: Block 'a' is on the table and clear. Block 'c' is on top of block 'b' and clear. Block 'b' is on the table. Block 'd' is held in the hand. The hand is not empty.
Action Path: ['unstack(d, a)', 'put-down(d)', 'unstack(a, c)', 'put-down(a)', 'pick-up(d)', 'stack(d, c)', 'unstack(d, c)', 'stack(d, c)', 'unstack(d, c)', 'stack(d, c)', 'unstack(d, c)']
