This may lead to opponents discarding 7s themselves, which would free up cards for the player to take from the discard pile. Ultimately, players can trick opponents a7 rummynd obtain an advantage in the game by using sophisticated tactics like bluffing and misdirection, which call for meticulous preparation and strategic decision-making. Keep Note of Played Cards. Keeping track of which cards have been played and which are still in play is an advanced strategy in addition to bluffing and deception.