How do you get through the puzzle in Falkner's gym?

To get through the puzzle in Falkner's gym in Pokémon HeartGold and SoulSilver, you need to navigate the various platforms while avoiding the trainers. You can move across the platforms by stepping on the right tiles to reach Falkner at the end. Pay attention to the layout and avoid stepping on tiles that lead you back to the beginning. Once you reach Falkner, you can challenge him to a battle.