Attempt Number: 6
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
To begin progressing towards the goal of painting tiles, robot1 should move down to start on the last row where painting will commence. This allows painting to occur directly below where the robot is positioned as per the constraints.

New State Description:
Tile tile_0-3 is cleared. Robot1 is now on tile_1-3 holding color white. Tile_1-3 is occupied by robot1. Tiles tile_0-1, tile_0-2, tile_1-1, tile_1-2, tile_2-1, tile_2-2, and tile_2-3 remain clear. Colors white and black are still available for switching.

Action Chosen:
down(robot1, tile_0-3, tile_1-3)
