Holding onto a 4 or 7 of hearts, for example, can open up opportunities for runs if a player has a 5 and 6 of hearts. Players should awhich rummy is reallso be careful which cards they discard because doing so can reduce the number of points that could be lost if an opponent goes out. Creating a winning strategy requires striking a balance between the need to form melds and the requirement to monitor opponents' moves.