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

Action Reasoning:
The robot is currently at tile_1-2, holding a white paint gun. According to the goal state, the robot needs to paint tile_0-0 black first. Since the robot is not yet at tile_1-0, the next logical step is to move the robot towards tile_1-0. Moving the robot left to tile_1-1 will bring it closer to tile_1-0. This action aligns with the strategy to position the robot at tile_1-0 first before painting the first row.

New State Description:
Robot1 has moved from tile_1-2 to tile_1-1. Tile_1-2 is now clear, and tile_1-1 is occupied by the robot. The robot is still holding the white paint gun.

Action Chosen:
left(robot1, tile_1-2, tile_1-1)
