This one proved to be very difficult. Many people have sent suggestions and I believe we've found the explanation. Just give your brain a go. Some people told me he was using a club instead of a putter but you would need to be a golfer to see the difference. These puzzles normally don't require special knowledge. Another suggestion was that he is playing the wrong hole because the flag is already down. But that seems to be normal in golf. Derived :Whats wrong ? No 13 Explanation Number of ratings : 52.