The puzzle in question involves a series of three challenges:
1. Flying Keys: Harry and his friends must navigate a room full of flying keys to reach the correct one that unlocks the next door.
2. Chess Game: They face a giant chessboard where they must strategize and play against living chess pieces to advance.
3. Logic Puzzle: This involves three magical creatures guarding a door and a series of riddles that must be solved to proceed.
The puzzle doesn't feature potion bottles in any form.