Solitaire card games/Monte Carlo

This game is also called Double and Quits it should not be confused with Double or Quits or any other casino game.

Rules


Game starts when 25 cards are laid out in such a way that they form a 5x5 grid (one version states that 20 cards are dealt to form a 5x4 grid). The rest of the deck are set aside for later as the reserve.

Cards that make up a pair (such as two Kings or two Sixes) are removed when they are immediately next to each other horizontally, vertically, or diagonally. Once all pairs have been removed, the cards are consolidated, i.e. moving cards to the left as if towards the upper left corner to fill any gaps left behind by the discarded pairs. New cards are then laid out from the reserve to form a fresh layout of 25 cards.

This removal of pairs, consolidation of cards, and addition of new cards continue until the reserve cards have run out. After this, removal of pairs and consolidation continues.

The game finishes when all cards have been discarded. The game also ends when it is no longer possible to remove pairs, especially on the finishing stages of the game such as "4-6-4-6."

Although luck is a large part of the game, strategy can also sometimes play a part. For example, one could leave a pair alone to be used to aid freeing a separated pair (e. g. two Queens that are left alone to unlock a Q-7-Q).

Variants

 * In a version called Monte Carlo Thirteens, instead of pairs of cards with the same rank, kings and pairs of cards with values totalling 13 are removed during game play.