Goal: First team to reach the point target wins (default 500).

Bidding: Each team bids how many tricks (out of 13) they'll take. Spades are always trump.

Scoring:

• Make your bid: bid × 10 points
• Miss your bid: −(bid × 10) points
• Tricks over your bid: +1 each (but accumulate as bags)
• Nil bid: Partner plays alone. +100 if no tricks taken, −100 if any tricks taken.

Bags: Overtricks (bags) score +1 each but every 10 bags = −100 penalty (optional rule — toggle below).