Sudden Death Option

One of the problems with chess is the long period of time wasted when one side is way ahead. 

I would like Chess.com to provide the following option:

"Sudden Death"

Meaning, if the player in the lead fails to take advantage of a one move check-mate, he automatically loses.  For advanced players it can be a two or even three move check-mate, both players would have to agree.  

This would make the game more challenging for the bored player in the lead.  It's kind of like trying to avoid a draw, you have to pay attention, only more so.  

If either player does not click on the option, the rule does not take effect, meaning both players have to agree (at any point in the game). 

I still think the doubling cube should also be an option between two players who play each other more than one game.