The Dynamics of Alliances in Rummy: A Complete Guide Alliances have a big impact on how the game turns out in the world of rummy. Although Rummy is frequently thought of as a solrummy 66o activity, players can gain an advantage by strategically forming alliances. Players can coordinate their moves, exchange information, and put up a more formidable front against opponents by working together. In addition to making the game more entertaining, this cooperative approach adds a level of complexity that may result in more engaging gameplay.