Guard Stan:
Ah, the Gold Giant. I will give you one Gold Giant for 5 Gold Drakes and 5 Gold Knights. Or perhaps you would prefer a game of chance?
Accept standard exchange rate
Play game. [Guess correctly in two tries - 3 Gold Knights]
Play game. [Guess correctly in three tries - 7 Gold Knights]
Play game. [Guess correctly in four tries - 9 Gold Knights]
Explanation of game