Omaha hold 'em (also known as Omaha holdem or simply Omaha) is a community card poker game similar to Texas hold 'em, where each player is dealt four cards and must make his or her best hand using exactly two of them, plus exactly three of the five community cards. The exact origin of the game is unknown, but casino executive Robert Turner first brought Omaha into a casino setting when he introduced the game to Bill Boyd, who offered it as a game at the Las Vegas Golden Nugget Casino (calling it "Nugget Hold'em"). Omaha uses one standard 52-card French deck. Limit Omaha hold 'em 8-or-better is the "O" game featured in H.O.R.S.E. Both limit Omaha/8 and pot limit Omaha high are featured as "O" and "A" respectively in the 8-Game (T.H.O.R.S.E.H.A.).