Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
I actually meant beyond mathematical doubt. Example would be backgammon, where one player could roll 2-1 and his or her opponent could roll 6-6 for the rest of the game and would still win. In chess I wouldn't recommend this approach.