There is one bank of them near rest rooms to right of Carnival Buffet. I
think there is another bank near the center of the casino as well. Sneaky Queens
have Rio Rita pop up occasionally as a suit which doubles payout if any.
This happens perhaps every half hour of play. I never had more than 2 pair or 3
of a kind doubled, but you never know. Watch out for some machines with
sticky keys - avoid these because "held" cards may pop up unheld.
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