The rules of 29
Four players in two pairs, partners sitting opposite. The 32 cards from seven to ace, jack highest in every suit, then nine, ace, ten, king, queen, eight, seven. Jacks are worth three, nines two, aces and tens one: twenty-eight in the cards, and the last trick is worth one more, twenty-nine in all.
Four cards each, then the bidding: each player bids higher, from sixteen to twenty-eight (twenty-nine at a table that counts the last trick), or passes. The highest bidder puts a card face down as the trump, and the other four cards each go out. At a table that plays doubles, the other side may now double, and the bidder redouble.
The player after the dealer leads. Follow suit if you can. If you cannot, you may ask for the trump: it is turned over for everybody, and from then on trumps take tricks. A trump played before it was shown is just a card of its suit.
Once the trump is shown, a player holding its king and queen -- the pair -- may show them on their turn, so long as their side has taken a trick since: the bid comes down by four if they are the bidder's side, and goes up by four if not, never below sixteen nor above the highest bid.
The bidding side needs its bid in points. Making it moves the side one up on the six, failing it one down -- two doubled, four redoubled. A side that reaches six wins the game, and a side that falls to minus six loses it.