The purpose of the app that I wrote is to remove the time that it takes to count how many letters words have in common. All you have to do is enter each word in exactly once and it suggests a word for you (which you don't have to choose). When you click 3/5 for a particular word then it filters the list for you showing you all of the words that are left which had 3/5 letters in common. There are some cases where the first word you choose would not allow you to get the correct word in four tries, but they appear to show up very rarely. It's just easier to let something else do the thinking for you =).

Try this application:

http://fallout3hacker.appspot.com/fallout3hacker.html

Let me know what you think or if you have any problems using it. It may seem kind of slow... it tries to do the calculations on the server. I'm not sure if that's the best way to do it yet.