oneaway

This game is played behind the giant price tag. The price of a car is shown, but it's the wrong price! Each digit is one away from the correct number. For example, if the digit is 2, the correct number is either 1 or 3. If the digit is 5, the correct number is either 4 or 6. You must guess whether each digit is one higher or one lower than the number shown. If you guess correctly for all five digits, you win the car! If you are wrong for all five digits (it has happened before in the days of 4-digit cars), the buzzer sounds instead of a car horn, followed by the losing horns, meaning you lose, and you don't get a second chance. If you have some, but not all, of the numbers correct though, you get another shot at the car. You will be told how many numbers you have right by asking "Ladies, do I have at least 1 number right?" up to "Ladies, do I have all 5 numbers right?" How ever many numbers you don't have right you change on your second chance. For example, if you have 3 numbers right, you change 2 of them, since 2 numbers are wrong. If at the end of your second chance, you have all 5 numbers right, you win. If any numbers are wrong, though, you lose.

The best thing that can happen is to get all 5 numbers right on your first try, or to get only one number right on your first try. Although, in theory, it's easier to get one number right than all 5 numbers right, it doesn't work well in practice, since you have a 50/50 shot at each digit. The best thing to do is try to get every digit right, and just hope you don't have 3 of the 5 numbers right, the worst thing that can happen. If 0 or 5 is a choice for the last digit, it is always correct. And you will never have to choose between both 0 and 5. If the last digit is 2, your other choice will always be 4, and never 0. If the last digit is 3, your other choice will always be 1 and never 5, and if it's 7, the other choice will be 9 and not 5.