If a 3 attacks and loses it could be a 4 or 5 that it attacked. But even so, that's part of the strategy - why not add more and more helpful features to make the game easier until we might as well let the game play itself?
If you want to keep track, make notes for yourself.
(hide) If you only look at some of the discussion boards on a regular basis you can add them to your favourite boards list by going to the Board page and clicking "Add to my favourite boards". (pauloaguia) (show all tips)