A fair reading of "Can casinos change slot machine odds?" comes from the pay table. Video poker sits between slots and table poker. A machine deals five cards, the player chooses which to hold, and a pay table fixed on the screen says what every final hand is worth. Because the player makes real decisions and the pay table is public, video poker is one of the few casino games where the odds can be read before any money goes in.
Video poker can be beaten only in narrow cases. On a few full pay machines, perfect strategy combined with cash back or comps can push the return above one hundred percent, which is what advantage play means here. Almost everywhere else the game is not profitable over time. Casinos control which pay table a machine carries, not which cards it deals: regulated machines draw from a random shuffle, so they are not rigged, but a weaker pay table quietly costs more.
Video poker odds are good, and better than slots on most machines because the return is printed rather than hidden. A full pay machine of the classic kind returns more than ninety nine percent with correct play, while a typical slot returns noticeably less and never says exactly how much. The best hands pay most: a royal flush, straight flush and four of a kind carry the top of the table, and small changes to what a full house or flush pays move the whole return.
Autoplay makes the holds for you and hides each decision, and on some games it does not play the best strategy. Manual play keeps the choices in view.
Strategy charts, analyzers and calculators show the best hold for every hand of a given pay table. They cut mistakes; they cannot change the pay table.
A full pay machine played with correct strategy returns well over 99 percent, above most slots, because the player's decisions shape the result.
A regulated machine shuffles a virtual deck at random for each deal, and its cards cannot know what the player holds. The pay table sets the return.