Poker probability frequencies are calculated in a manner similar to that shown for 5-card hands, except additional complications arise due to the extra two cards in the 7-card poker hand. The total number of distinct 7-card hands is formula_3. It is notable that the probability of a no-pair hand is "less" than the probability of a one-pair or two-pair hand. The Ace-high straight flush or royal flush is slightly more frequent (4324) than the lower straight flushes (4140 each) because the remaining two cards can have any value; a King-high straight flush, for example, cannot have the Ace of its suit in
Video poker a flush is 6 times the bet. Sometimes, 10/6 and 9/7 versions of Jacks or Better can be found as promotions. Bally Technologies All American video poker is based on Jacks or Better with an increased payout for flushes, straights and straight flushes, but reduced payout for full houses and two pairs (8-8-8-3-1 versus 9-6-4-3-2). The full pay version (quads return 50 bets), once common but now rare, is one of the highest return versions of video poker offered, but the play strategy is very complex and mastered by few. IGT's version of the game is called USA Poker. "Tens