Here's the situation. You have 6 six doors.
A B C D E F
Behind one of them is a prize.
You get to choose a door.
If it has the prize, you are told so and win immediately.
If not, you are told whether or not the prize is in an adjacent door. (note: if you pick door A, and they say its adjacent, this means it HAS to be door B)
You then get a second guess.
What are the chances of winning the game if you pick door A or F? What about picking B, C, D, or E?