Progressive jackpot its break-even level) than a game that requires only a 5-credit wager to qualify. Usually the jackpot can only be won by winning the combination with the highest payoff, e.g. a royal flush at a video poker game, or five of the most valuable symbols (lemons, cherries, alligators, etc.) on a slot machine. In some games such as video poker, blackjack, or Caribbean stud poker, it is possible to compute an optimal playing strategy based on the average payoff (the amount of payoff times the chance of payoff). Because the jackpot of a progressive game constantly grows, it sometimes exceeds
Video poker with pay schedules that offer a theoretical return as high as 100.8 percent, when played with perfect strategy. This full-pay version is found only in Nevada. It is also available with other pay schedules that have lesser theoretical returns: Variations are available that pay different amounts for the quad "deuces", such as Double Deuces (2000), Loose Deuces (2500), Triple Deuces (3000), and Royal Deuces (4000). Full pay Loose Deuces (25-17-10), once common but now rare, is one of the highest return versions of video poker offered. Sigma Flush Attack is a combination of video poker and a banking slot, in