Spin Fever

Introduction
Spin Fever is a video poker game I first noticed at the Red Rock casino in Las Vegas in February, 2012. This is the second game I have seen recently to allow for community bonuses in video poker. In other words, a bonus that multiple players can play at the same time.

The thrust of the idea of Spin Fever is that every time the player gets a flush or better on the draw, he earns multipliers towards the next bonus. When a bonus is initiated, a prize wheel will spin. If the player chooses to participate in the bonus, then his win will depend on where the wheel stops and the player’s accumulated multipliers. After completing a bonus, the player’s multipliers will reset to zero. Any player with at least one multiplier may initiate a bonus any time.

Rules
Spin Fever may be played like ordinary 3-play, 5-play, or 10-play video poker. To invoke the bonus feature, the player must bet the full five coins per play, and then add an extra 3 coins play as a non-refundable fee . So, the total bet would be 24 coins on 3-play, 40 on 5-play, and 80 on 10-play. All the following rules assume the player is paying the Spin Fever fee.

Whenever the player earns a flush or higher on the draw, he earns multipliers. These multipliers are accumulated until they are used on a Fever Spin. There are three categories of multipliers, as follows:

Flush multipliers
Full house multipliers
Four of a kind or higher multipliers

As long as the player has at least one multiplier, then he may choose to spin the Spin Fever wheel. In addition, if any player at the bank of machines chooses to spin the wheel, then the other players will have about ten seconds to choose to play along.

The wheel has 20 slices, ranging from wins of 20 to 4,000. There are three fixed arrows above the wheel. The red arrow on the left designates the flush win. The yellow arrow in the middle designates the full house win. The blue arrow on the right designates the four of a kind or higher win. At this point I think I should pause for an example.

At the Red Rock I initiated the bonus with one flush multiplier and two full house multipliers. The wheel stopped on 400 at the flush arrow, 300 for the full house arrow, and 50 for the four of a kind or higher arrow.

I had one flush multiplier, so my flush win was 1×400 = 400
I had two full house multipliers, so my full house win was 2×300 = 600
I had zero four of kind or better multipliers, so my four of a kind or better win was 0 × 50 = 0
Thus, my total bonus win was 400+600+0=1000.

After any Fever Spin the player initiates, or chooses to join, his multipliers will reset to zero.

According to the rule screens the average bonus wins per multiplier for each hand are:

* Flush: 79.6
* Full house: 103.8
* Four of a kind or better: 138.6

Based on the weighting of each stop (they are not equally likely) I find that the figure above are averages. Here are the average wins to six decimal places.

* Flush: 33750/424 = 79. * Full house: 44010/424 = 103. * Four of a kind or better: 58750/424 = 138. Return Tables
The following are pay tables seen either at VideoPoker.com or the Red Rock. As usual with video poker, I like to express the pay table in terms of the win per coin, based on a max-coin bet. In this case, the average Spin Fever wins have also been divided by 5. The return column is the product of the total win, probability, and 5/8. The reason for multiplying by 5/8 is that 3/8 of the amount bet is a non-refundable fee.

8-6 Jacks or Better
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,281,0800. .011271Straight flush5027. . ,188,486,2920. .007769Four of a kind2527. . ,518,948,5120. .073580Full house820. . ,602,237,9680. .197123Flush615. . ,628,745,8080. .289093Straight40. . ,767,036,9160. . of a kind30. . ,376,777,656,0320. .129505Two pair20. . ,425,168,391,9040. .152081Jacks or better10. . ,409,420,171,4280. .106901Nothing00. . ,865,724,561,2600. .000000Total19,933,230,517,2001. . Jacks or Better
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,168,7600. .011813Straight flush5027. . ,183,355,1880. .007757Four of a kind2527. . ,763,107,3280. .073983Full house820. . ,497,365,8720. .197930Flush515. . ,133,773,8320. .272956Straight40. . ,767,490,9960. . of a kind30. . ,386,102,200,1840. .130382Two pair20. . ,437,027,542,5040. .152824Jacks or better10. . ,399,448,676,7960. .106589Nothing00. . ,857,851,835,7400. .000000Total19,933,230,517,2001. . Jacks or Better
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,160,5040. .011813Straight flush5027. . ,183,338,6760. .007757Four of a kind2527. . ,762,678,0160. .073983Full house620. . ,494,988,1440. .184164Flush515. . ,129,711,8800. .272954Straight40. . ,889,312,4040. . of a kind30. . ,386,068,334,0720. .130379Two pair20. . ,436,954,278,7600. .152820Jacks or better10. . ,399,389,506,0440. .106587Nothing00. . ,857,903,208,7000. .000000Total19,933,230,517,2001. . Bonus Poker Deluxe
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,204,7120. .011269Straight flush5027. . ,183,236,5080. .007756Four of a kind8027. . ,761,383,8880. .151172Full house820. . ,487,427,7120. .197921Flush615. . ,944,785,4800. .286561Straight40. . ,295,409,5640. . of a kind30. . ,385,959,252,7040. .130369Two pair10. . ,436,712,447,1040. .076402Jacks or better10. . ,398,859,220,0680. .106570Nothing00. . ,857,593,149,4600. .000000Total00. . ,933,230,517,2001. . Double Bonus
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,545,2000. .011044Straight flush5027. . ,302,735,9160. . aces16027. . ,634,356,2160. . . . ,335,439,4920. . K5027. . ,185,446,5880. .071115Full house920. . ,882,357,0640. .195841Flush715. . ,996,332,9240. .326980Straight50. . ,334,698,8520. . of a kind30. . ,283,929,478,2680. .120772Two pair10. . ,302,628,468,8680. .072198Jacks or better10. . ,503,207,796,3360. .109842Nothing00. . ,955,367,861,4760. .000000Total19,933,230,517,2001. . Double Double Bonus
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,977,5600. .010900Straight flush5027. . ,268,192,8120. .007963Four aces + . . ,000,413,5760. .013416Four 2-4 + A . . ,768,362,7040. .016294Four aces + 5-K16027. . ,725,107,4560. .016039Four 2-4 + 5-K8027. . ,412,078,3880. .025033Four 5-K5027. . ,236,363,4040. .071239Full house920. . ,522,410,9520. .199237Flush615. . ,890,974,2080. .302332Straight40. . ,424,735,4200. . of a kind30. . ,322,935,415,1840. .124441Two pair10. . ,354,498,786,3040. .073825Jacks or better10. . ,490,756,125,5160. .109452Nothing00. . ,894,371,573,7160. .000000Total19,933,230,517,2001. . Double Double Bonus
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,280,1040. .011452Straight flush5027. . ,193,508,5200. .007781Four aces + . . ,005,169,0320. .013480Four 2-4 + A . . ,845,982,0040. .016750Four aces + 5-K16027. . ,735,484,2160. .016100Four 2-4 + 5-K8027. . ,650,311,4600. .025837Four 5-K5027. . ,231,849,4360. .071228Full house820. . ,706,329,0920. .193610Flush515. . ,738,245,9360. .284504Straight40. . ,162,700,8160. . of a kind30. . ,335,442,605,5400. .125617Two pair10. . ,370,473,296,4520. .074325Jacks or better10. . ,478,797,029,8440. .109077Nothing00. . ,882,806,724,7480. .000000Total19,933,230,517,2001. . Triple Double Bonus
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,305,7520. .010960Straight flush5027. . ,175,011,9840. .007736Four aces + . . ,195,419,2640. .031024Four 2-4 + A . . ,352,690,9080. .044962Four aces + 5-K16027. . ,309,102,0640. .013591Four 2-4 + 5-K8027.71107.716,232,871,3280. .021050Four 5-K5027.7177.7128,448,252,3520. .069318Full house920.7629.76212,339,551,6440. .198133Flush615.9221.92442,427,643,6240. .304075Straight40.004.00170,510,316,6000. . of a kind20.002.001,309,879,132,7160. .082142Two pair10.001.002,335,208,664,4920. .073220Jacks or better10.001.003,511,935,364,6080. .110116Nothing00.000.0011,905,794,189,8640. .000000Total19,933,230,517,2001. . Triple Double Bonus
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,594,8800. .011512Straight flush5027. . ,169,021,7400. .007722Four aces + . . ,199,923,9440. .031141Four 2-4 + A . . ,353,650,6680. .044975Four aces + 5-K16027. . ,318,912,2560. .013648Four 2-4 + 5-K8027. . ,233,058,6360. .021051Four 5-K5027. . ,444,498,9680. .069309Full house820. . ,371,305,7680. .191504Flush515. . ,959,600,9200. .289240Straight40. . ,822,372,2440. . of a kind20. . ,310,211,815,9760. .082163Two pair10. . ,335,433,949,5760. .073227Jacks or better10. . ,517,243,679,5200. .110282Nothing00. . ,901,025,132,1040. .000000Total19,933,230,517,2001. . Triple Double Bonus
HandPaysBonusTotal WinCombinationsProbabilityReturnRoyal flush80027. . ,592,8160. .011512Straight flush5027. . ,169,087,7880. .007722Four aces + . . ,199,899,1760. .031141Four 2-4 + A . . ,353,644,4760. .044975Four aces + 5-K16027. . ,318,846,2080. .013648Four 2-4 + 5-K8027. . ,233,058,6360. .021051Four 5-K5027. . ,444,534,0560. .069309Full house720. . ,371,120,0080. .184845Flush515. . ,962,261,4160. .289242Straight40. . ,824,479,5880. . of a kind20. . ,310,209,729,2720. .082162Two pair10. . ,335,431,776,1840. .073227Jacks or better10. . ,517,220,577,1680. .110281Nothing00. . ,901,047,910,4080. .000000Total19,933,230,517,2001. .960540The following table summarizes the return for each return table above, including the 5-coin return. You can see the return is always higher under the Spin Fever return, for any given game and pay table.

Return Summary
GamePay Table5-Coin ReturnSpin Fever ReturnJacks or Better8-50. .975401Jacks or Better6-50. .961637Bonus Poker Deluxe8-60. .989254Double Bonus9-70. .996559Double Double Bonus9-60. .991544Double Double Bonus8-50. .971104Double Double Bonus7-50. .964382Triple Double Bonus9-60. .987713Triple Double Bonus8-50. .967199Triple Double Bonus7-50. .960540Strategy
Any Spin Fever game would have a very unusual strategy. If you wish to use my video poker strategy maker, then you should use the 1-coin wins (based on a max-coin bet) plus add 15.92 the flush, 20.76 to the full house, and 27.71 to the four of a kind and higher.

I already ran the strategy for 8-5 Jacks or Better. Here are some of the oddities about this strategy.

* Two suited low cards beats tossing everything.
* Three to a flush sometimes beats a low pair and two to a royal.
* Hold a suited low kicker with a single high card.
* Four to a flush beats a pat straight.

If one were to use conventional video poker strategy in Spin Fever, then the cost due to errors would be about 7% of money bet.

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Written by:Michael Shackleford