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Intermediate strategy for Jacks or Better video poker

Last update: Nov. 6, 2008

The following strategy is my "intermediate strategy" for jacks or better video poker. Using the strategy on a full pay machine will result in an expected return of 99.52%. Compared to the optimal strategy return of 99.54%, mistakes in the simple strategy will cost 0.03%, or one total bet every 3805 hands.

The following stategy is not expressed in the usual order of value. Instead, this is a list of all the common conflict hands. I think the kind of list below is better suited to the way people actually think about video poker. The list is in the order of the hand strength of the better play.

  1. 9 T J Q K — Pat straight flush or 4 to a royal: Keep the straight flush.
  2. 2 T J Q A — Pat flush or 4 to a royal: Go for the royal.
  3. T J Q K A — Pat straight or 4 to a royal: Go for the royal.
  4. T J Q Q K — High pair or 4 to a royal: Go for the royal.
  5. J Q Q Q K — 3 of a kind or 3 to a royal: Keep the 3 of a kind.
  6. 2 6 J Q K — Pat flush or 3 to a royal: Keep the flush
  7. 3 4 6 7 Q Pat flush or 4 to a straight flush: Keep the flush
  8. T J Q K A — Pat straight or 3 to a royal: Keep the straight
  9. 4 5 6 7 8 — Pat straight or 4 to a straight flush: Keep the straight
  10. T T Q A A — 2 pair or 3 to a royal: Keep the 2 pair.
  11. 7 8 9 J J — 4 to a straight flush vs. any pair: Go for straight flush
  12. 2 5 7 J J — High pair vs. 4 to a flush: Keep high pair
  13. 8 9 T J J — High pair vs. 4 to a straight: Keep high pair
  14. 3 T J Q Q — High pair vs. 3 to a royal flush: Keep high pair
  15. 3 9 J Q Q — High pair vs. 3 to a straight flush: Keep high pair
  16. 4 T T Q A — 3 to a royal vs. Low pair: Go for the royal.
  17. 2 5 T Q A — 3 to a royal vs. 4 to a flush: Go for the royal
  18. 2 T J Q K — 3 to a royal vs. 4 to a straight: Go for the royal
  19. 3 3 5 7 9 — 4 to a flush vs low pair: Go for the flush
  20. 4 5 6 7 Q — 4 to a flush vs. 4 to a straight: Go for the flush
  21. 2 6 7 8 K — 4 to a flush vs. 3 to a straight flush: Go for the flush
  22. 2 7 8 Q K — 4 to a flush vs. 2 to a royal flush: Go for the flush
  23. 5 6 7 7 8 — Low pair vs. 4 to a straight: Keep the low pair
  24. 7 8 8 9 K — Low pair vs. 3 to a straight flush: Keep the low pair
  25. 3 6 6 J Q — Low pair vs. 2 to a royal: — Keep the low pair
  26. 2 7 8 9 T — 4 to an outside straight vs. 3 to a straight flush: Go for the straight
  27. 2 9 T J Q — 4 to an outside straight vs. 2 to a royal flush: Go for the straight
  28. 4 5 6 J Q — 3 to a straight flush (type 1) vs. 2 to a royal flush: Go for the straight flush
  29. 8 T J Q A — 3 to a straight flush (type 1) vs. 4 to an inside straight with 3-4 high cards: Go for the straight flush
  30. 2 T J Q A — 2 to a royal flush (both high) vs. 4 to an inside straight with 3-4 high cards: Go for the royal
  31. 2 4 J Q K — 2 to a royal flush (both high) vs. any 3 unsuited high cards: Go for the royal
  32. 5 6 8 K A — 2 to a royal flush (both high) vs. 3 to a straight flush (type 2): Go for the royal
  33. 7 T J K A — 4 to an inside straight with 3-4 high cards vs. 3 to a straight flush (type 2): Go for the straight
  34. 7 T J K A — 4 to an inside straight with 3-4 high cards vs. 2 to a royal (ten low): Go for the straight
  35. 2 4 7 T J — 3 to a straight flush (type 2) vs. 2 to a royal flush (10 low): Go for the straight flush
  36. 7 8 T J A — 3 to a straight flush (type 2) vs. 1-3 high cards: Go for the straight flush
  37. 2 5 J Q K — KQJ vs. QJ: Play KQJ
  38. 4 6 T J Q — QJ vs 2 to a royal flush (ten low): Keep QJ
  39. 2 4 6 J Q — QJ vs 3 to a straight flush (type 3): Keep QJ
  40. 3 5 J Q A — QJ vs 3 high cards A high: Keep QJ
  41. 2 3 T J A — JT suited vs 2-3 unsuited high cards K or A high: Keep JT
  42. 2 4 6 T J — JT suited vs 3 to a straight flush (type 3): Keep JT
  43. 2 4 T J K — KJ vs JT suited: Keep KJ
  44. 2 4 6 J K — KQ or KJ vs. 3 to a straight flush (type 3): Keep KQ or KJ
  45. 3 4 5 T K — KT suited vs. K: Play KT suited
  46. 2 4 6 T K — KT suited vs. 3 to a straight flush (type 3): Keep KT suited
  47. 3 5 7 8 J — Single high card vs. 3 to a straight flush (type 3): Keep high card only

If you prefer to learn the usual way, here is a list of possible plays according to the strength of the hand. To use the strategy look up all viable ways to play an initial hand on the following list and elect that which is highest on the list. A "high card" means a jack or higher.

  1. Four of a kind, straight flush, royal flush
  2. 4 to a royal flush
  3. Three of a kind, straight, flush, full house
  4. 4 to a straight flush
  5. Two pair
  6. High pair
  7. 3 to a royal flush
  8. 4 to a flush
  9. Low pair
  10. 4 to an outside straight
  11. 3 to a straight flush (type 1)
  12. AKQJ unsuited
  13. 2 suited high cards
  14. 4 to an inside straight with 3 high cards
  15. 3 to a straight flush (type 2)
  16. KQJ unsuited
  17. QJ unsuited
  18. JT suited
  19. KQ, KJ unsuited
  20. QT suited
  21. AK, AQ, AJ unsuited
  22. KT suited
  23. One high card
  24. 3 to a straight flush (type 3)
  25. Discard everything

Terms:

High card: A jack, queen, king, or ace. These cards are retained more often because if paired up they return the original bet.

Outside straight: An open ended straight that can be completed at either end, such as the cards 7,8,9,10.

Inside straight: A straight with a missing inside card, such as the cards 6,7,9,10. In addition A,2,3,4 and J,Q,K,A also count as inside straights because they are at an extreme end.

High Card:J to A

Straight Flush draw (type 1):Open ended straight flush draw, in which the number of high cards equals or exceeds number of gaps.

Straight Flush draw (type 2):Open ended straight flush draw, in which the number of gaps, less the number of high cards, equals 1. Also, any ace-low straight flush draw, or 2-3-4 suited.

Straight Flush draw (type 3):Straight flush draw with two gaps and no high cards.

Example: Suppose you have the following hand.

The top two plays are (1) keep the three to a straight flush and (2) keep two to a royal flush. The number of gaps to the straight flush is 2 and the number of high cards is also 2, so it is a type 1 straight flush draw. The table shows that 3 to a straight flush (type 1), beats two suited high cards, so keep the 3 cards to the straight flush.

 

Comparison to Optimal Strategy

The following table compares the probability and return of each hand under both the simple strategy and the optimal strategy.

Simple Strategy to Optimal Strategy Comparison

Hand

Pays

Probability

Return

Interm.

Optimal

Interm.

Optimal

Royal flush

800

0.000025

0.000025

0.020204

0.019807

Straight flush

50

0.000114

0.000109

0.005696

0.005465

Four of a kind

25

0.002362

0.002363

0.059039

0.059064

Full house

9

0.011507

0.011512

0.103565

0.10361

Flush

6

0.011171

0.011015

0.067029

0.066087

Straight

4

0.011122

0.011229

0.04449

0.044917

Three of a kind

3

0.074421

0.074449

0.223263

0.223346

Two pair

2

0.129261

0.129279

0.258523

0.258558

Pair

1

0.213368

0.214585

0.213368

0.214585

Nothing

0

0.546648

0.545435

0

0

Total

1

1

0.995176

0.995439

The next table is a frequency distribution of the error, or difference in expected return, between the simple strategy and the optimal strategy.

Error Frequency

Error

Number

Probability

0

2576244

99.125958%

.01% to .99%

5064

0.194847%

1% to 1.99%

1872

0.072029%

2% to 2.99%

2820

0.108505%

3% to 3.99%

5496

0.211469%

4% to 4.99%

4656

0.179149%

5% to 5.99%

2376

0.091421%

6% to 6.99%

432

0.016622%

7% to 7.99%

0

0%

8% to 8.99%

0

0%

9% to 9.99%

0

0%

10% to 10.99%

0

0%

11% to 11.99%

0

0%

12% to 12.99%

0

0%

13% to 13.99%

0

0%

14% to 14.99%

0

0%

15% to 15.99%

0

0%

Total

2598960

100%

 

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