In a game of spades, how does being blind affect a player's strategy and decision-making?

Being blind in a game of spades means that a player cannot see their cards, which can make it challenging to keep track of what has been played and plan their moves. This can affect their strategy and decision-making as they have to rely more on memory, communication with their partner, and predicting opponents' cards. It requires a greater level of focus and adaptability to make the best plays without being able to see their own hand.