Parent State ID: 14
State Depth: 6
Action Taken: put-down(d)
Action Reasoning: To achieve the goal state, we need block 'd' on top of block 'c', which is currently clear. We will put down block 'd' to make progress towards this configuration.
State Description: Block 'a' is on the table and clear. Block 'c' is clear and on top of block 'b'. Block 'b' is on the table. Block 'd' is on the table and clear. The hand is empty.
Action Path: ['unstack(d, a)', 'put-down(d)', 'unstack(a, c)', 'put-down(a)', 'pick-up(d)', 'put-down(d)']
