Four seats in two teams — you and North against West and East. Thirteen cards each; empty seats are played by bots. First team to 500 wins (or the other team drops to −200).
Starting left of the dealer, each player bids how many tricks they will take. Nil is a bid to take none. A team's bid is the sum of its partners' bids.
The player left of the dealer leads. Follow suit if you can. Spades are trumps: the highest spade wins the trick, otherwise the highest card of the suit led. The winner leads next.
Spades may not be led until one has been played on another suit, unless you hold only spades.
Make your team's bid for 10 points per trick bid, plus a point per extra trick (a bag). Miss it and lose 10 per trick bid. Every ten bags costs 100. Nil made is +100, nil broken is −100 and those tricks count as bags.
With more than one person, each hand is hidden until that player taps I'm ready. Undo is available when playing alone. Games save automatically.
Keyboard: Tab to a playable card, Enter or Space to play it.