32 cards: A K Q J 10 9 8 7 in each suit, but the 7♠ is replaced by the Joker, the strongest card. Seats across from each other are partners.
Bidding starts right of the dealer; the dealer bids last. Each player bids once: pass or 5–8 (higher than the current bid). If everyone passes, the Joker holder is Forced to play for 5.
The winning bidder picks trump. Follow suit if you can. The Joker always wins a trick but can't be led unless it's your last card — and if you do lead it on the last trick it expires: the hand ends and your team loses it.
Scoring: made bid = bid points; failed bid = double to the other team; Forced = 5 either way. First team to 32 wins.
Tap an empty seat to move there. Partners sit across from each other. Empty seats are filled with computer players when the game starts.