it is a game based on matching cards of the same rank or sequence (same suit)
number of players: two, three or four
deck : a standard deck of 52 cards
each player receives a certain number of cards from the deck
cards are delt one-by-one turning round the table
the undealt cards are placed in a face down stack in the middle and called the stock
a single card from the top of the stock is turned face up and placed next to the stock where players discard or shed cards, and this is known as the pile
in some variations the melds must be 3 or 4 cards, while other variations allow larger melds through the use of longer runs, for example: 8♠9♠T♠J♠Q♠
players take turns adding and shedding cards from their hands picking a card either from the stock or from pile and discarding a card to the pile. player cannot take from pile and discard just the same card
if a player discards a card, making a run or set in the pile, it may not be taken up without taking all cards below the top one (variation: all cards between melded and after them must be taken)
melds are revealed to all players by placing them face up on the table
when
after a empting his hand, the winner (in some variations - all players) score their hand. deadweight scored as minus points
scoring involves each player adding up points in their melded cards and deducting points from cards that have not been melded - deadweight
NB: a player may have a negative score if the unmelded cards total more than the melded ones
usually play continues until one player passes a threshold, for example 1000 points
in some variations player may remove the card from his/her deadweight if s/he can attach it to winner's meld, and such cards dont count in score - neither plus or minus
sometimes player can add cards to his/her previous meld. ususaly this can be done when the size of meld restricted to 4 so player can add fourth card only and no more above that
once the winner has melded all his/her cards the other players reveal their entire hand and submit their hands to validation - all other players reveal their melds and deadweight. the action of submitting the cards is called showing
in some variations each player
in that case a player must put all of their cards into at least two melds though they may be allowed to shed one card to the pile before showing