Failing to account for this and that player can sneak a victory from right under your nose.
Sounds obvious, right? Well, what’s not so obvious is the fact that people often only count the raw score that their opponents have without paying to the potential score that they might actually have. For example, if someone has 2 Knights and 3 more development cards up their sleeve and everyone else has a single Knight at most, that player might already have another 2 points in the bag from the special Knight achievement. Failing to account for this and that player can sneak a victory from right under your nose. So don’t get caught with your pants down.