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

Action Reasoning:
Since robot1 is currently holding black and on tile_3-3, it should paint tile_3-3 black to match the goal pattern, allowing it to then move on to the next tile.

New State Description:
- Robot1 is on tile_3-3, holding the color black.- Row 0: tile_0-1, tile_0-2, tile_0-3 are clear.- Row 1: tile_1-1, tile_1-2, tile_1-3 are clear.- Row 2: tile_2-1, tile_2-2, tile_2-3 are clear.- Row 3: tile_3-1 is painted white, tile_3-2 is painted black, and tile_3-3 is now painted black.- Available Colors: White and black are available for switching.

Action Chosen:
paint-down(robot1, tile_3-3, tile_3-3, black)
