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

Action Reasoning:
The next best action is to move the robot to the right to tile_0-5, as it allows the robot to paint tile_1-5 white, which is the next unpainted tile in the goal state.

New State Description:
Robot1 is standing on tile_0-5, holding the color black. Tile_1-4 is painted black and is no longer clear. Tile_0-5 is occupied by the robot. All other tiles remain unchanged.

Action Chosen:
right(robot1, tile_0-4, tile_0-5)
