Attempt Number: 3
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
The next optimal action is to move the robot to the left to the tile_1-1. This allows the robot to be in the correct position to paint the tile_2-1 with white, the required color.

New State Description:
- Robot1 is now on tile_1-1 and is holding the color white.- Tile_0-4 is clear.- Tile_1-1 is occupied by robot1.- Tile_1-2 is clear.- Tile_1-3 is clear.- Tile_1-4 is clear.- Tile_1-5 is clear.- Tile_2-1 is clear and can be painted next.- Tile_2-2 is painted white and is no longer clear.- Tile_2-3 is painted black and is no longer clear.- Tile_2-4 is painted white and is no longer clear.- Tile_2-5 is painted black and is no longer clear.- Both colors, white and black, are available for switching.

Action Chosen:
left(robot1, tile_1-2, tile_1-1)
