Spades

Trick Scoring

If a partnership takes at least as many tricks as their bid, they earn 10 points for each trick bid plus 1 point for each additional trick (bags) taken. Every 10 extra tricks per game results in a deduction of 100 points.

For example, if a team gets 9 bags in one round and 9 bags in the next, they lose 100 points. They now have 18 bags total for the game. The next two bags they get will result in another 100 point deduction.

A team failing to make their bid loses 10 points for each trick bid.

Bid Nil Scoring

A player who bids nil and takes no tricks earns their partnership a bonus of 100 points. If a nil bidder takes at least one trick, their partnership loses 100 points. Additionally, normal scoring applies based on bids and tricks taken.

Shoot the Moon

If a team bids to take all 13 tricks during a round and they do so successfully, they'll be rewarded 200 extra points (this is also known as a Boston). This can't be done if the opposing team has bid double nil.