by maryadkins Sun Mar 17, 2013 5:17 pm
Hate to break it to you, but I didn't figure out a faster way to do this one either.
Apart from using previous work and scanning to see what you can eliminate based on it (in addition to your initial diagram of course), next best move is to be strategic about which you test. In this case scan for the one that looks possible and try it out.
Again, in this question that doesn't get you very far... so you just gotta go fast. My best tip is not to hesitate at this point. If you try all of the above and are still stuck, start writing! Don't waste more time thinking about how you must be missing something...