Attempt Number: 4
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
The best action is to move the "square0" piece from f1-0f to f2-0f because it clears the top two rows further, which aligns with our goal of clearing the top three rows. This move is unique compared to previous actions and sets up additional space for moving other pieces down.

New State Description:
- **rightl0 (L-shaped piece):** Occupies positions f4-2f, f5-2f, and f5-3f, colored blue.- **straight0 (Two-square straight piece):** Occupies positions f2-1f and f3-1f, colored green.- **straight1 (Two-square straight piece):** Occupies positions f3-2f and f4-2f, colored red.- **square0 (One-square piece):** Occupies position f2-0f, colored yellow.- **square1 (One-square piece):** Occupies position f3-0f, colored orange.- **Grid Cells (Unoccupied):** Positions f0-0f, f0-1f, f0-2f, f0-3f, f1-0f, f1-1f, f1-2f, f1-3f, f2-2f, f2-3f, f3-3f, f4-3f are clear.

Action Chosen:
move_square(square0, f1-0f, f2-0f)
