Attempt Number: 5
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
The robot should paint the tile directly below it (tile_2-2) white, as it is holding the white color and this action aligns with the goal state of having tile_2-2 painted white. After this, I plan to move right and change color.

New State Description:
Tile tile_0-1 remains clear. Tile tile_0-2 remains clear. Tile tile_0-3 remains clear. Tile tile_1-1 remains clear. Tile tile_1-2 is now clear as robot1 has painted below and moved. Tile tile_1-3 remains clear. Tile tile_2-1 remains clear. Tile tile_2-2 is now painted white. Tile tile_2-3 remains clear. Robot1 is still on tile_1-2, holding color white. Color white and color black are still available for switching.

Action Chosen:
paint-down(robot1, tile_2-2, tile_1-2, white)
