Seven cards, one draw, and a cut that ends the round at once.
The Spanish and Argentine rummy, played with seven cards and settled by cutting. Fast, and unforgiving of a bad hold.
40 or 48 Spanish-suited cards, or a 52-card deck with two jokers. Seven cards each.
Sets of three or four of the same rank, and runs of three or more in the same suit. Seven cards means either two melds of three with one card over, or a meld of three and a meld of four with nothing over.
Jokers are wild.
Draw the top of the stock or the top discard, then discard one card. Nothing is laid down during play.
When the cards left over from your melds total 5 points or less, you may cut: lay your hand face up and discard your last card. Everyone else shows their hand and scores their unmelded cards.
Court cards 10, aces 1, number cards face value, joker 25 when left in hand.
Seven cards in a single run of the same suit. Lay it down and you win the entire game outright, regardless of the score — which is why players chase it when they are already losing.
Points are penalties and accumulate. When a player passes 100 they are eliminated, but may buy back in once, re-entering at the current highest score.
The last player left wins. A player who cuts with zero left over deducts 10 from their own total.