Attempt Number: 2
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
The robot needs to move to the first row where painting can start. The best action is to move down to tile_1-1 to begin painting the tiles in row 2, starting with tile_2-1, which should be painted black. This aligns with the goal of painting the last row first.

New State Description:
(tile_0-1: clear, tile_0-2: clear, tile_0-3: clear, tile_1-1: occupied by robot1 holding color white, tile_1-2: clear, tile_1-3: clear, tile_2-1: clear, tile_2-2: clear, tile_2-3: clear, robot1: on tile_1-1 holding color white, color_white: available, color_black: available)

Action Chosen:
down(robot1, tile_0-1, tile_1-1)
