In 6 nimmt! you want to score as few points as possible.
To play the game, you shuffle the 104 number cards, lay out four cards face-up to start the four rows, then deal ten cards to each player. Each turn, players simultaneously choose and reveal a card from their hand, then add the cards to the rows, with cards being placed in ascending order based on their number; specifically, each card is placed in the row that ends with the highest number that's below the card's number. When the sixth card is placed in a row, the owner of that card claims the other five cards and the sixth card becomes the first card in a new row.
In addition to a number from 1 to 104, each card has a point value. After finishing ten rounds, players tally their score and see whether the game ends. (Category 5 ends when a player has a score greater than 74, for example, while 6 nimmt! ends when someone tops 66.) When this happens, the player with the fewest points wins!