The game of Chinchón is played with a Spanish 40 or 48-card pack. The rules of the game are very similar to those of Gin Rummy, that is, seven cards are dealt to each player, and the remaining cards of the deck are laid on the table face down to form the stock. The top card of this pile is then turned face up and laid beside the stock to start the discard pile. The players look at and sort their cards, and then play by turns. Each turn consists of a draw and a discard:
The player can then try to make combinations in their hand with the new card. Each set in the hand must have at least 3 cards, and may be a group or a run, that is, sequential cards of the same suit.
After that, one card must be discarded from the player's hand and placed on top of the discard pile face up, so that the player always has seven cards in their hand.
Some variations allow the use of 2 Jokers as wild cards.
Once a player has enough sets, they may decide to meld their cards, laying off their hand on the table, and the round ends. That can be done when the player thinks that the value of their unmatched cards, called "deadwood" in Rummy, is less than that of the other players. Each of the players score penalty points equivalent to the sum of the face value of the unmatched cards left in their hand. If a player has no unmatched cards, that is, Gin, they earn a bonus of -10 points. A player automatically wins the game if they manage to make a sequence of seven cards, called chinchón. If the game includes Jokers as wild cards, a run with a Joker doesn't count as a true chinchón and doesn't win the game, but still allows the -10 points bonus. When one of the players reaches 100 or more, the game ends, and the player with the lowest score wins.
Variations
Conga
In Uruguay, Conga ends when only one player remaining has less than 100 points, as all other players with more than 100 can "reenganche" with the player that has the highest score under 100. Also, players can only meld their cards if they have 5 or less points in their hand, unless their score is 96 or more, as melding requires staying in the game at 100 or less. Also, when the game starts, all but the one to the right of the dealer receive 7 cards, the one to the right is the "Mano" and that player receives an eighth card, to which he places the least convenient card in his hand, next to the face-down deck, thus starting the game with a single card already for selection, which is commonly a 12.