Holdem is a variation of poker in which players compose the best 5 card hand using the two downcards in their hand (hole cards) and the five shared community cards on the board. A player can use both hole cards, one, or none (Play the board) to make their hand. The best of any five card combination using player hole cards and the board cards determines the winner of the hand. A dealer button is used to determine the betting order and the order in which the cards are dealt. A big blind and a small blind bet after the dealer button that starts the betting.