# Flush Fever - Nevada Variant

## Introduction

Imagine video poker where every time you drew to a four to a flush you won something. Imagine no more, as this the idea behind Flush Fever. The way it works is that when the player draws to any four suited cards the game will keep burning any replacement cards that don't result in a win until a win is found.

There is another game I encountered in Oregon years ago called Flush Fever with a different concept of a free game bonus round after any flush on the draw. To distinguish between the two games, I shall call the free game version the Oregon variant and the game addressed here the Nevada variant. To make matters even more confusing, I hear there is yet another Flush Fever variant in South Dakota, but I don't know anything about it.

## Rules

1. Except as noted, standard video poker rules are followed.
2. The game can be played as conventional video poker for one to five coins bet or the player may enable the Flush Fever feature for an optional sixth coin.
3. The sixth coin not only pays for the Flush Fever feature, but it also bumps up the pay table on some pays.
4. If the player draws to four suited cards, then the game shall randomly go through the 47 replacement cards until a win is found. The game shall then give the player the winning card.
5. The royal flush award shall start at 4,000 coins for a five-coin bet. It will go up by one coin for each card burned in the Flush Fever feature, in search of a winning hand.
6. The maximum amount the royal flush can grow beyond the 4,000 coin seed is \$99,999.
7.

## Example

In the hand above I was dealt four to a flush. I held the four diamonds and discarded the three of clubs.

The picture doesn't show it, but a losing card flashed through the position of the second card from the left before the game stopped on the jack of diamonds, awarding me a flush. This burned card is evident in the fact that the meter is 5¢ higher in the second picture, by one coin, because of the single burned card.

## Analysis

The following tables show the probability and return of each hand for the games and pay tables Flush Fever is available in. These tables are based on a maximum six-coin bet. Wins are shown on a per coin basis. The win for a royal is based on the reseed amount. The return column is the product of the win, probability and 5/6. The reason for multiplying by 5/6 is the player must bet six coins but wins are based on five coins only. The overall return is found in the lower right corner.

### 117-9-6 Jacks or Better

Hand Pays Probability Return
Royal flush 800 0.000031 0.020901
Straight flush 117 0.000290 0.028304
Four of a kind 25 0.002347 0.048901
Full house 9 0.011453 0.085897
Flush 6 0.035428 0.177142
Straight 4 0.011383 0.037943
Three of a kind 3 0.073795 0.184487
Two pair 2 0.128326 0.213877
Jacks or better 1 0.217596 0.181330
Nothing 0 0.519350 0.000000
Total   1.000000 0.978780

### 70-9-6 Jacks or Better

Hand Pays Probability Return
Royal flush 800 0.000031 0.020467
Straight flush 70 0.000279 0.016247
Four of a kind 25 0.002352 0.048995
Full house 9 0.011473 0.086045
Flush 6 0.035087 0.175434
Straight 4 0.011468 0.038228
Three of a kind 3 0.073978 0.184946
Two pair 2 0.128580 0.214299
Jacks or better 1 0.219537 0.182948
Nothing 0 0.517216 0.000000
Total   1.000000 0.967609

### 60-8-6 Jacks or Better

Hand Pays Probability Return
Royal flush 800 0.000031 0.020454
Straight flush 60 0.000278 0.013912
Four of a kind 25 0.002352 0.048995
Full house 8 0.011473 0.076484
Flush 6 0.035081 0.175406
Straight 4 0.011481 0.038269
Three of a kind 3 0.073977 0.184942
Two pair 2 0.128576 0.214293
Jacks or better 1 0.219568 0.182973
Nothing 0 0.517184 0.000000
Total   1.000000 0.955728

### 50-7-6 Jacks or Better

Hand Pays Probability Return
Royal flush 800 0.000031 0.020435
Straight flush 50 0.000278 0.011569
Four of a kind 25 0.002351 0.048979
Full house 7 0.011470 0.066908
Flush 6 0.035081 0.175405
Straight 4 0.011529 0.038431
Three of a kind 3 0.073945 0.184863
Two pair 2 0.128530 0.214217
Jacks or better 1 0.219655 0.183046
Nothing 0 0.517130 0.000000
Total   1.000000 0.943853

### 50-6-6 Jacks or Better

Hand Pays Probability Return
Royal flush 800 0.000031 0.020435
Straight flush 50 0.000278 0.011569
Four of a kind 25 0.002351 0.048979
Full house 6 0.011470 0.057349
Flush 6 0.035081 0.175405
Straight 4 0.011529 0.038431
Three of a kind 3 0.073945 0.184863
Two pair 2 0.128530 0.214217
Jacks or better 1 0.219655 0.183046
Nothing 0 0.517130 0.000000
Total   1.000000 0.934295

### 117-9-6 Bonus Poker Deluxe

Hand Pays Probability Return
Royal flush 800 0.000031 0.020800
Straight flush 117 0.000290 0.028300
Four of a kind 80 0.002345 0.156302
Full house 9 0.011430 0.085728
Flush 6 0.035410 0.177048
Straight 4 0.012951 0.043170
Three of a kind 3 0.073447 0.183617
Two pair 1 0.127463 0.106219
Jacks or better 1 0.214180 0.178483
Nothing 0 0.522454 0.000000
Total   1.000000 0.979667

### 110-8-6 Bonus Poker Deluxe

Hand Pays Probability Return
Royal flush 800 0.000031 0.020784
Straight flush 110 0.000290 0.026569
Four of a kind 80 0.002344 0.156241
Full house 8 0.011427 0.076182
Flush 6 0.035394 0.176972
Straight 4 0.013008 0.043359
Three of a kind 3 0.073411 0.183527
Two pair 1 0.127414 0.106178
Jacks or better 1 0.214366 0.178638
Nothing 0 0.522315 0.000000
Total   1.000000 0.968450

### 86-8-6 Bonus Poker Deluxe

Hand Pays Probability Return
Royal flush 800 0.000031 0.020350
Straight flush 62 0.000278 0.014361
Four of a kind 80 0.002348 0.156545
Full house 8 0.011447 0.076315
Flush 6 0.035047 0.175233
Straight 4 0.013094 0.043646
Three of a kind 3 0.073595 0.183989
Two pair 1 0.127668 0.106390
Jacks or better 1 0.216330 0.180275
Nothing 0 0.520162 0.000000
Total   1.000000 0.957105

### 56-7-6 Bonus Poker Deluxe

Hand Pays Probability Return
Royal flush 800 0.000030 0.020313
Straight flush 56 0.000277 0.012942
Four of a kind 80 0.002348 0.156516
Full house 7 0.011446 0.066767
Flush 6 0.035050 0.175251
Straight 4 0.013086 0.043619
Three of a kind 3 0.073580 0.183949
Two pair 1 0.127649 0.106374
Jacks or better 1 0.216535 0.180446
Nothing 0 0.519999 0.000000
Total   1.000000 0.946177

### 50-6-6 Bonus Poker Deluxe

Hand Pays Probability Return
Royal flush 800 0.000030 0.020292
Straight flush 50 0.000277 0.011552
Four of a kind 80 0.002479 0.165249
Full house 6 0.008175 0.040874
Flush 6 0.035256 0.176279
Straight 4 0.013101 0.043669
Three of a kind 3 0.077718 0.194296
Two pair 1 0.108244 0.090203
Jacks or better 1 0.233975 0.194979
Nothing 0 0.520746 0.000000
Total   1.000000 0.937394

### 76-8-6 Bonus Poker

Hand Pays Probability Return
Royal flush 800 0.000031 0.020585
Straight flush 76 0.000279 0.017663
Four aces 80 0.000193 0.012863
Four 2-4 40 0.000527 0.017574
Four 5-K 25 0.001631 0.033980
Full house 8 0.011471 0.076472
Flush 6 0.035096 0.175479
Straight 4 0.011479 0.038262
Three of a kind 3 0.073957 0.184894
Two pair 2 0.128552 0.214254
Jacks or better 1 0.219419 0.182850
Nothing 0 0.517365 0.000000
Total   1.000000 0.974875

### 69-7-6 Bonus Poker

Hand Pays Probability Return
Royal flush 800 0.000031 0.020590
Straight flush 69 0.000279 0.016034
Four aces 80 0.000193 0.012863
Four 2-4 40 0.000527 0.017574
Four 5-K 25 0.001630 0.033964
Full house 7 0.011468 0.066896
Flush 6 0.035096 0.175481
Straight 4 0.011527 0.038423
Three of a kind 3 0.073926 0.184815
Two pair 2 0.128508 0.214180
Jacks or better 1 0.219443 0.182869
Nothing 0 0.517372 0.000000
Total   1.000000 0.963691

### 60-6-6 Bonus Poker

Hand Pays Probability Return
Royal flush 800 0.000031 0.020473
Straight flush 60 0.000278 0.013913
Four aces 80 0.000198 0.013178
Four 2-4 40 0.000527 0.017574
Four 5-K 25 0.001631 0.033974
Full house 6 0.011366 0.056828
Flush 6 0.035084 0.175418
Straight 4 0.011532 0.038440
Three of a kind 3 0.074042 0.185104
Two pair 2 0.128528 0.214213
Jacks or better 1 0.219566 0.182971
Nothing 0 0.517219 0.000000
Total   1.000000 0.952087

### 50-6-6 Bonus Poker

Hand Pays Probability Return
Royal flush 800 0.000031 0.020425
Straight flush 50 0.000282 0.011730
Four aces 80 0.000198 0.013187
Four 2-4 40 0.000527 0.017575
Four 5-K 25 0.001633 0.034015
Full house 6 0.011377 0.056887
Flush 6 0.035151 0.175754
Straight 3 0.010692 0.026729
Three of a kind 3 0.074219 0.185549
Two pair 2 0.128920 0.214866
Jacks or better 1 0.220503 0.183753
Nothing 0 0.516468 0.000000
Total   1.000000 0.940469

### 50-9-7-5 Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000029 0.019644
Straight flush 50 0.000282 0.011763
Four aces 160 0.000216 0.028833
Four 2-4 80 0.000524 0.034937
Four 5-K 50 0.001601 0.066694
Full house 9 0.010608 0.079556
Flush 7 0.038477 0.224450
Straight 5 0.015324 0.063848
Three of a kind 3 0.072626 0.181565
Two pair 1 0.118578 0.098815
Jacks or better 1 0.203166 0.169305
Nothing 0 0.538569 0.000000
Total   1.000000 0.979409

### 104-9-6-5 Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000031 0.020685
Straight flush 104 0.000291 0.025199
Four aces 160 0.000221 0.029460
Four 2-4 80 0.000524 0.034965
Four 5-K 50 0.001605 0.066891
Full house 9 0.010693 0.080195
Flush 6 0.035397 0.176984
Straight 5 0.015750 0.065627
Three of a kind 3 0.073318 0.183296
Two pair 1 0.120004 0.100003
Jacks or better 1 0.213919 0.178266
Nothing 0 0.528246 0.000000
Total   1.000000 0.961571

### 93-9-6-4 Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000031 0.020948
Straight flush 93 0.000288 0.022294
Four aces 160 0.000224 0.029853
Four 2-4 80 0.000527 0.035137
Four 5-K 50 0.001622 0.067576
Full house 9 0.010790 0.080922
Flush 6 0.035415 0.177077
Straight 4 0.013029 0.043430
Three of a kind 3 0.074479 0.186197
Two pair 1 0.122036 0.101697
Jacks or better 1 0.217949 0.181624
Nothing 0 0.523610 0.000000
Total   1.000000 0.946754

### 180-8-5-4 Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000032 0.021114
Straight flush 180 0.000303 0.045436
Four aces 160 0.000222 0.029627
Four 2-4 80 0.000525 0.035031
Four 5-K 50 0.001612 0.067187
Full house 8 0.010738 0.071589
Flush 5 0.035675 0.148644
Straight 4 0.013083 0.043610
Three of a kind 3 0.073980 0.184949
Two pair 1 0.121333 0.101111
Jacks or better 1 0.217673 0.181394
Nothing 0 0.524824 0.000000
Total   1.000000 0.929692

### 113-9-6 Double Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000032 0.021035
Straight flush 113 0.000295 0.027786
Four aces + 2-4 400 0.000061 0.020275
Four 2-4 + A-4 160 0.000143 0.019089
Four aces + 5-K 160 0.000171 0.022835
Four 2-4 80 0.000384 0.025623
Four 5-K 50 0.001614 0.067252
Full house 9 0.010788 0.080907
Flush 6 0.035612 0.178060
Straight 4 0.012975 0.043250
Three of a kind 3 0.074476 0.186190
Two pair 1 0.121970 0.101641
Jacks or better 1 0.215087 0.179239
Nothing 0 0.526392 0.000000
Total   1.000000 0.973183

### 67-9-6 Double Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000032 0.021005
Straight flush 67 0.000280 0.015627
Four aces + 2-4 400 0.000061 0.020301
Four 2-4 + A-4 160 0.000143 0.019093
Four aces + 5-K 160 0.000172 0.022870
Four 2-4 80 0.000384 0.025627
Four 5-K 50 0.001621 0.067543
Full house 9 0.010818 0.081132
Flush 6 0.035265 0.176325
Straight 4 0.013034 0.043448
Three of a kind 3 0.074768 0.186921
Two pair 1 0.122357 0.101964
Jacks or better 1 0.216408 0.180340
Nothing 0 0.524656 0.000000
Total   1.000000 0.962196

### 60-8-6 Double Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000031 0.020914
Straight flush 60 0.000279 0.013971
Four aces + 2-4 400 0.000061 0.020291
Four 2-4 + A-4 160 0.000143 0.019092
Four aces + 5-K 160 0.000171 0.022857
Four 2-4 80 0.000384 0.025626
Four 5-K 50 0.001621 0.067532
Full house 8 0.010815 0.072097
Flush 6 0.035332 0.176662
Straight 4 0.013050 0.043499
Three of a kind 3 0.074740 0.186850
Two pair 1 0.122299 0.101916
Jacks or better 1 0.216293 0.180244
Nothing 0 0.524780 0.000000
Total   1.000000 0.951551

### 50-7-6 Double Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000031 0.020884
Straight flush 50 0.000278 0.011591
Four aces + 2-4 400 0.000061 0.020285
Four 2-4 + A-4 160 0.000147 0.019563
Four aces + 5-K 160 0.000171 0.022848
Four 2-4 80 0.000395 0.026332
Four 5-K 50 0.001621 0.067535
Full house 7 0.010501 0.061256
Flush 6 0.035437 0.177186
Straight 4 0.013030 0.043434
Three of a kind 3 0.075026 0.187565
Two pair 1 0.122268 0.101890
Jacks or better 1 0.215946 0.179955
Nothing 0 0.525088 0.000000
Total   1.000000 0.940321

### 50-6-6 Double Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000031 0.020911
Straight flush 50 0.000278 0.011601
Four aces + 2-4 400 0.000061 0.020273
Four 2-4 + A-4 160 0.000147 0.019558
Four aces + 5-K 160 0.000171 0.022830
Four 2-4 80 0.000395 0.026323
Four 5-K 50 0.001619 0.067455
Full house 6 0.010483 0.052413
Flush 6 0.035753 0.178766
Straight 4 0.013012 0.043372
Three of a kind 3 0.074912 0.187280
Two pair 1 0.122012 0.101676
Jacks or better 1 0.214943 0.179119
Nothing 0 0.526183 0.000000
Total   1.000000 0.931578

### 113-10 Triple Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000032 0.021455
Straight flush 113 0.000296 0.027913
Four aces + 2-4 800 0.000070 0.046476
Four 2-4 + A-4 400 0.000170 0.056614
Four aces + 5-K 160 0.000147 0.019556
Four 2-4 80 0.000312 0.020808
Four 5-K 50 0.001593 0.066361
Full house 10 0.010617 0.088478
Flush 6 0.036880 0.184402
Straight 4 0.013563 0.045210
Three of a kind 2 0.073627 0.122712
Two pair 1 0.120405 0.100338
Jacks or better 1 0.210244 0.175203
Nothing 0 0.532044 0.000000
Total   1.000000 0.975525

### 106-9 Triple Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000032 0.021435
Straight flush 106 0.000296 0.026163
Four aces + 2-4 800 0.000070 0.046472
Four 2-4 + A-4 400 0.000173 0.057529
Four aces + 5-K 160 0.000147 0.019553
Four 2-4 80 0.000320 0.021327
Four 5-K 50 0.001592 0.066342
Full house 9 0.010380 0.077851
Flush 6 0.036960 0.184802
Straight 4 0.013567 0.045223
Three of a kind 2 0.073820 0.123033
Two pair 1 0.120350 0.100292
Jacks or better 1 0.209991 0.174993
Nothing 0 0.532302 0.000000
Total   1.000000 0.965015

### 50-9 Triple Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000032 0.021309
Straight flush 50 0.000279 0.011634
Four aces + 2-4 800 0.000070 0.046477
Four 2-4 + A-4 400 0.000173 0.057514
Four aces + 5-K 160 0.000147 0.019560
Four 2-4 80 0.000320 0.021330
Four 5-K 50 0.001601 0.066726
Full house 9 0.010415 0.078112
Flush 6 0.036597 0.182984
Straight 4 0.013790 0.045967
Three of a kind 2 0.074159 0.123598
Two pair 1 0.120756 0.100630
Jacks or better 1 0.210799 0.175666
Nothing 0 0.530863 0.000000
Total   1.000000 0.951507

### 50-8 Triple Double Bonus

Hand Pays Probability Return
Royal flush 800 0.000032 0.021323
Straight flush 50 0.000279 0.011642
Four aces + 2-4 800 0.000070 0.046476
Four 2-4 + A-4 400 0.000173 0.057514
Four aces + 5-K 160 0.000147 0.019559
Four 2-4 80 0.000320 0.021329
Four 5-K 50 0.001601 0.066702
Full house 8 0.010412 0.069413
Flush 6 0.036651 0.183255
Straight 4 0.013785 0.045952
Three of a kind 2 0.074131 0.123551
Two pair 1 0.120711 0.100593
Jacks or better 1 0.210624 0.175520
Nothing 0 0.531064 0.000000
Total   1.000000 0.942829

## Summary

The following tables summarize my analysis of each game. The column headings are defined as follows:

• Pay Table: Except for the Double Bonus table, this shows the wins for a straight flush and full house. For double bonus, it also indicates the wins for a flush and straight. These were the only wins necessary to differentiate one pay table from another.
• Base Return: This is the return right after a meter reset at 4,000 coins.
• IGT Return: IGT, the game maker, was kind enough to share their own return. These returns I assume to be an average for all possible meters. My own figures for the overall return come in 0.11% higher.
• 1000-Coin Increment: The additional return, above the base return, for each 1,000 coins in the meter greater than 4,000.
• Breakeven Meter: The number of coins in the meter for the return to reach 100%. This assumes strategy based on a 4,000 coin royal.
• Probability Positive: This shows the probability that a meter will reach the positive point, assuming it is at its 4,000 coin starting point.

### Jacks or Better

Pay Table Base
Return
IGT
Return
1000-Coin
Increment
Breakeven
Meter
Probability
Positive
117,9 97.88% 99.79% 0.005225 8,061 0.018689
70,9 96.76% 98.68% 0.005117 10,331 0.004497
60,8 95.57% 97.49% 0.005113 12,658 0.000690
50,7 94.39% 96.30% 0.005109 14,990 0.000077
50,6 93.43% 95.34% 0.005109 16,861 0.000010

### Bonus Poker Deluxe

Pay Table Base
Return
IGT
Return
1000-Coin
Increment
Breakeven
Meter
Probability
Positive
117,9 97.97% 99.88% 0.005200 7,910 0.021035
110,8 96.85% 98.76% 0.005196 10,072 0.004850
62,8 95.71% 97.63% 0.005088 12,431 0.000887
56,7 94.62% 96.53% 0.005078 14,599 0.000124
50,6 93.74% 95.65% 0.005073 16,341 0.000021

### Bonus Poker

Pay Table Base
Return
IGT
Return
1000-Coin
Increment
Breakeven
Meter
Probability
Positive
76,8 97.49% 99.40% 0.005146 8,882 0.011943
69,7 96.37% 98.28% 0.005148 11,054 0.002462
60,6 95.21% 97.12% 0.005118 13,361 0.000363
50,6 94.05% 95.96% 0.005106 15,659 0.000039

### Double Bonus

Pay Table Base
Return
IGT
Return
1000-Coin
Increment
Breakeven
Meter
Probability
Positive
50,9,7,5 97.94% 99.86% 0.004911 8,193 0.023375
104,9,6,5 96.16% 98.07% 0.005171 11,431 0.001742
93,9,6,4 94.68% 96.59% 0.005237 14,167 0.000123
180,8,5,4 92.97% 94.88% 0.005279 17,319 0.000003

### Double Double Bonus

Pay Table Base
Return
IGT
Return
1000-Coin
Increment
Breakeven
Meter
Probability
Positive
113,9 97.32% 99.23% 0.005259 9,099 0.009018
67,9 96.22% 98.14% 0.005251 11,199 0.001828
60,8 95.16% 97.07% 0.005228 13,266 0.000304
50,7 94.03% 95.95% 0.005221 15,431 0.000034
50,6 93.16% 95.07% 0.005228 17,088 0.000005

### Triple Double Bonus

Pay Table Base
Return
IGT
Return
1000-Coin
Increment
Breakeven
Meter
Probability
Positive
113,10 97.55% 99.47% 0.005364 8,563 0.011608
106,9 96.50% 98.42% 0.005359 10,529 0.002649
50,9 95.15% 97.07% 0.005327 13,103 0.000280
50,8 94.28% 96.20% 0.005331 14,725 0.000052
50,7 93.42% 95.33% 0.005330 16,354 0.000008

## Acknowledgements

I would like to thank IGT, the game maker, for supplying the available games, pay tables, and returns that Flush Fever is available in.

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