In Poker, calling means making a wager equal to the last bet or raise. In a hand of poker, a player can call when he has two distinct pairs of cards, a pair, and a high card. If two players have the same hand, the high card wins in a tie. In addition, if two players have the same hand, and they are both at least a pair, the tie is broken by the high card.
The highest ranking hand in Poker is the royal flush. This hand contains three of one rank and two of the next. If two players have a flush, the highest card of both hands wins. A straight flush, on the other hand, consists of five cards of the same rank, from any suit. A straight flush is a hand of three of a kind, but is rarer than a full house. And a straight flush is the highest-ranking possible hand, consisting of five cards of the same rank and suit.
In a single-player poker tournament, the best hand is called a “nut”. In this case, the best possible hand is a pair of 7s, while an eight or nine is the best possible straight. As the highest-ranking hand, a trip seven would be the highest-ranking hand in the pot. In poker tournaments, however, a gutshot hand is not as likely to hit as an open-ended straight.