Game Drawn Insufficient Material

http://www.chess.com/livechess/game?id=1007379383

My opponent lost on time... What is this?! I even have a screenshot of the time... sigh

Staff?

On this site, having a lone knight is not considered mating material.  You didn't have mating material, and thus did not deserve to win on time.  Therefore, the result was a draw (your opponent also did not deserve to win, since they ran out of time - nobody deserves to win, so it's a draw).

Note that different organizations have different rules regarding what is "mating material."  I believe that in FIDE tournaments, this would be a win for you, as a position can be constructed where you have checkmated white.  It is difficult for a computer to determine that, however, so this site uses some simple rules to determine mating material - if the player has a K, a K and a single minor piece, or a K and two N's, then mating material does not exist.

Took the liberty of doing a "search forums" for you.  If you don't have sufficient material to mate, it's a draw.  I know you don't believe me, that's why I got you the link:

http://www.chess.com/forum/search?keyword=insufficient+material

Thank's for the information, I understand now.

Only if you are playing by FIDE rules. USCF rules do not allow for a "helpmate" in these situations. Cess.com rules more closely follow USCF.