Module 22: Six-card Omaha. Fifteen combinations, and the thresholds that move again.
Before any strategy, it is worth seeing what six cards does to the hands you are dealt, because the numbers are further from four-card intuition than most players expect. Everything on this page is an exact count rather than a simulation: there are 20,358,520 six-card hands, against 2,598,960 with five cards and 270,725 with four.
Read the aces row first, because it is the one that changes how a hand feels. In four-card Omaha a pair of aces arrives about once in 39 hands and feels like an event. In the six-card game it arrives once in 16, roughly twice as often as in five-card and two and a half times as often as in four. Something that turns up every sixteen hands is not an event. It is a normal holding, and it needs to be played like one.
Then the double-suited row, which is the one people find hardest to believe. With four cards, a double-suited hand is a nice piece of luck: about one hand in seven. With six cards, 79.5% of hands hold at least two suits with two or more cards in each. Having two flush routes stops being a feature of your hand and becomes the baseline, which means it stops being a reason to play.
The reading to take. Anything that arrives most of the time is not a reason to play a hand. In six-card Omaha, a pair, two suits and some connection are all normal. What makes a hand worth playing is whether those things point at the nuts, and Module 21's argument gets stronger here rather than weaker.
That is also the honest reason this module is short. Six-card Omaha has no principles of its own. It has the four-card principles with the dial turned further, and the useful thing a course can do is say how far, and in which direction.
How often does a six-card hand contain a pair of aces?
Answer: About once in 16 hands. Right: 6.1% of hands, about one in sixteen. Aces are a routine holding in this game rather than an event.
What share of six-card hands are double-suited or better?
Answer: About 80%. Right: 79.5%. Two flush routes is the baseline in this game, not a feature.
Which figure does NOT change between four-card and six-card Omaha?
Answer: How often a pair flops a set. Right: 12.2% in every version. Whether the board brings the third card of your pair is a fact about the board, not about your hand.
Why does 'my hand is double-suited' mean much less in six-card Omaha?
Answer: Four in five hands are double-suited, so it does not distinguish your hand from anybody's. Right. A feature that 79.5% of hands have is not a reason to play; what still separates hands is nut potential.