Attempt Number: 2
Error Message: The action "change-color(robot1, white, black)" has already been explored, resulting in the same child state where Robot1 is on tile_1-2 and has changed its paint gun color from white to black.

Action Reasoning:
The last action taken was a move to the right, which means the next logical step is to change the color of the paint gun. This is necessary because the goal state requires an alternating color pattern, and the robot is currently holding white paint. The next tile to be painted (tile_0-2) should be black according to the goal state. Therefore, changing the color from white to black is the best action to take at this point.

New State Description:
Robot1 is now holding the black paint gun while standing on tile_1-2. The tile_1-2 remains occupied by Robot1, and tile_1-1 is clear. The robot is ready to paint the tile directly above it (tile_0-2) with black paint.

Action Chosen:
change-color(robot1, white, black)
