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Practical Poker Math

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5. Odds in Omaha Hi-Lo<br />

Odds of Making a Gut-Shot Straight with 2 Cards to<br />

Come<br />

WILLNOTs : WILLs<br />

820 : 170<br />

Reduce<br />

820 / 170 : 170 / 170<br />

4.8 : 1<br />

2 Pair >>> Full House or Quads<br />

With 2 pair, assuming no pairs in the hole, there are 4 cards,<br />

any one of which will make a Full House or Quads. 4 of the<br />

unseen 45 cards will make the hand and 41 will not.<br />

4 * 41 = 164 is the number of 2-card combinations, one card<br />

of which will make the Boat.<br />

Comb(4, 2) is the number of 2-card combinations that contain<br />

2 cards either of which make the Boat or Quads:<br />

(4 * 3) = 6<br />

(1 * 2)<br />

In addition there are 8 pairs that can also make the Boat.<br />

164 + 6 + 8 = 178 possible 2-card combinations that WILL<br />

make the Boat or Quads:<br />

Total Possibilities = 990<br />

– WILLs = 178<br />

WILLNOTs = 812<br />

Odds of making a Full Boat or Quads<br />

with 2 Cards to Come<br />

WILLNOTs : WILLs<br />

812 : 178<br />

212

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