GlossaryAt the table

Omaha (PLO)

A flop game like Hold'em where each player holds four or more cards and must use exactly two of them.

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What it means
Pot-limit Omaha deals each player four cards (five in PLO5 and Big O, six in PLO6). The best hand uses exactly two hole cards and exactly three board cards.
How it is calculated
Check every pair from your hand with every three cards from the board. Four suited board cards and one suited hole card make no flush, because two hole cards must play.
Worked example
With A♠K♠Q♦J♦ on a board of 10♠9♠2♠7♥3♣, the A♠K♠ make the nut flush. Holding A♠K♦Q♦J♣ on 10♠9♠8♠7♠2♣, the lone spade makes no flush.
Why it matters
More cards in hand means stronger hands at showdown and closer equities: before the flop the best hand is rarely more than a 65% favorite.

Try it: Omaha calculator, Big O calculator

See also: Hi-lo (eight or better), Equity, Hand rankings