Parent State ID: 19
State Depth: 8
Action Taken: stack(d, c)
Action Reasoning: To achieve the goal state, we need to place block 'd' on block 'c'. Since 'd' is currently held, the best action is to stack 'd' on 'c', which aligns with the goal state.
State Description: Block 'a' is on the table and clear. Block 'c' is on top of block 'b' and supporting block 'd'. Block 'b' is on the table. Block 'd' is on top of block 'c' and clear. The hand is 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)']
