Parent State ID: 30
State Depth: 8
Action Taken: stack(d, b)
Action Reasoning: To achieve the goal state, we need to stack block 'd' on block 'b'. This action will help us build the desired stack from the bottom up.
State Description: The hand is now empty. Block 'd' is on block 'b' and is clear. Block 'b' is supporting block 'd' and is no longer clear. Block 'a' is on block 'c' and is clear. Block 'c' is supporting block 'a' and is no longer clear.
Action Path: ['unstack(c, d)', 'put-down(c)', 'unstack(d, a)', 'stack(d, b)', 'pick-up(a)', 'stack(a, c)', 'unstack(d, b)', 'stack(d, b)']
