Attempt Number: 3
Error Message: The action and resulting child state have already been explored.

Action Reasoning:
Currently, Robot1 is at tile_1-3 and holding the white paint gun. The goal is to paint the first row in an alternating black and white pattern starting from tile_0-0. Since Robot1 is not at tile_1-0, it should move left towards tile_1-0. The next logical step is to move Robot1 left from tile_1-3 to tile_1-2 to continue progressing towards tile_1-0. This action aligns with the goal of positioning the robot to paint the first row in the correct sequence.

New State Description:
Robot1 has moved from tile_1-3 to tile_1-2. Tile_1-3 is now clear, and tile_1-2 is occupied by the robot. The robot is still holding the white paint gun.

Action Chosen:
left(robot1, tile_1-3, tile_1-2)
