Patterns in chess ...
See this game:
http://www.chess.com/livechess/game?id=435859970.
(It ends in a smothered mate.)
Nothing special about it. However, I wanted to point out - especially for beginners and lower-rated players - that knowledge of the pre-existing patterns will help you win more chess games.
I have added a lot of good stuff over the years to this website, he has a very useful page of the basic mating patterns.