Question: 4 cards are shuffled and placed face down in front of you. Their hidden faces display 4 elements: water, earth, wind, fire. You turn over cards until win or lose. You win if you turn over water and earth. You lose if you turn over fire. What is the probability that you win?
I understand that wind is effectively absent from the sample space. Does not affect your chances of winning or losing. I also know that 1/3 (because we removed wind), you can pick fire where you lose the game.