Video poker machines operated in state-regulated jurisdictions are programmed to deal random card sequences. A series of cards is generated for each play; five dealt straight to the hand, the other five dealt in order if requested by player. This is based upon a Nevada regulation, adopted by most other states with a gaming authority, which requires dice and cards used in an electronic game to be as random as the real thing, within computational limits set by the gaming authority. Video poker machines are tested to ensure compliance with this requirement before they may be offered to the public. Video poker games in Nevada are required to simulate a 52 card deck (or a 53 card deck if using a joker).
It is unclear whether all video poker machines at Indian gaming establishments are subject to the same Nevada-style regulations, as Indian casinos are located on reservations that are sovereign to the tribe which holds the gaming license.
Newer versions of the software no longer deal out all 10 cards at once. They now deal out the first five cards, and then when the draw button is pressed, they generate a second set of cards based on the remaining 47 cards in the deck. This was done after players found a way to reverse engineer a random number generator's cycle from sample hands and were able to predict the hidden cards in advance.
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