Most of the house's edge comes from the fact that the player loses when both the player and dealer bust. Blackjack players using basic strategy lose on average less than 1% of their action over the long run, giving blackjack one of the lowest edges in the casino.

In blackjack , dealers have an advantage because players act first and can bust before the dealer plays. Dealers follow fixed rules, avoiding risky decisions. Ties go to the dealer, and only the dealer's blackjack can collect all player bets.

The rank of each card used in Texas Hold'em when forming a five-card high poker hand, in order of highest to lowest rank, shall be: ace, king, queen, jack, 10, 9, 8, 7, 6, 5, 4, 3, and 2. All suits shall be considered equal in rank. The ace would be considered low any time the ace begins a straight or a straight flush.

Under high rules, an ace can rank either high (as in A. K&c Q&c J. 10&`, an ace-high straight) or low (as in 5&c 4. 3&e 2&e A&`, a five-high straight), but cannot simultaneously rank both high and low (so Q&` K&` A&c 2&e 3.