Focusing on creating melds as fast as you can while simultaneously keeping an eye on the cards your opponents are discarding and picking up is one strategy ultimate rummy freethat works well. You can impede your opponents' attempts in addition to advancing your own hand thanks to this dual focus. You might want to refrain from discarding cards of a specific suit or rank if you observe that your opponent is gathering them, for example, as they might aid them in finishing their melds.