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Ask the Slot Expert: Do multiple denomination machines have different RNGs for each denomination?

6 September 2017
Question: Several machines have optional denominations from 25 cents to $2. Do all these denominations use the same RNG or do they change depending on the denomination chosen? Answer: I've received multiple answers to this question. Some people say that switching denomination causes a new game program, including RNG, to be loaded. ... (read more)
 

Ask the Slot Expert: How many RNGs are there in a multi-hand video poker machine?

30 August 2017
Question: A casino near me is offering a bonus for hitting a royal flush. Should I avoid playing video poker at other casinos and on my tablet until I go to that casino? I don't want to waste a royal. Answer: You can play as much or as little video poker as you like without affecting your chances for ... (read more)
 

Ask the Slot Expert: Drawing a royal flush

23 August 2017
Question: Last night I played a Top Dollar machine with an extra bonus feature. It was $5 for the max credits. I got a Top Dollar and accepted the second offer of $115. Then the second bonus threw up an offer of $15. The casino host told me that if I declined that offer it would reset the first bonus, but it looked to me like the first bonus was locked in. ... (read more)
 

Ask the Slot Expert: Are slot machines that pause illegal?

16 August 2017
Question: I have a question about certain slot machines I have been playing which freeze randomly after a play has been made. I am wondering if this is illegal because the game does not allow you to press play for random amounts of time, which in turn blocks specific sections of the RNG from being played. ... (read more)
 

Ask the Slot Expert: What determines the payback percentage on a slot machine?

9 August 2017
Question: I vaguely understand the EPROM chip and its function. As you, and most readers, are fully aware, casinos order slot machines with a certain payback percentage for each machine. What determines the payback percentage on reel slot machines? Answer: Let's look at what happens during a spin and ... (read more)
 

Ask the Slot Expert: How do video poker machines deal cards?

2 August 2017
Question: Two questions: Have you ever had your bet refunded by a slot machine? If not, what would make it do this? There was a scratch ticket in Texas that guaranteed a winning ticket. You paid $20 and you were guaranteed to win at least $5. Is there a slot machine like this? Answer: First question: No, I have never had a slot machine refund a bet and I don't think it's possible. ... (read more)
 

Ask the Slot Expert: Converting slot dollars to cash

26 July 2017
This week, more comments I overheard in the casinos. How would you play 1,000 slot dollars? I overheard this while waiting to play in my session at a slot tournament. The top prize was 1,000 slot dollars. The game used for this tournament was one of the games in the Everi TournEvent series. It's a game where you have to do more than just hit the spin button. ... (read more)
 

Ask the Slot Expert: Holding two pair when it pays the same as a high pair

19 July 2017
This week I'd like to discuss some comments I overheard in the casinos. Don't hold two pair when it pays the same as jacks or better. Two people were playing some sort of bonus poker pay table that paid the same for two pair and jacks or better. The more knowledgeable player was giving the novice pointers. ... (read more)
 

Ask the Slot Expert: Tax form after winning $2,000 on Double Up

12 July 2017
Question: On a slot machine such as Wonder Four, you can play four games on one spin. Does it matter what games you choose? Is it the game you choose or the position a game is in that determines the outcome of that spin? I see people changing one (or all four) to another game in hopes that it will ... (read more)

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John Robison
John Robison is an expert on slot machines and how to play them. John is a slot and video poker columnist and has written for many of gaming’s leading publications. He holds a master's degree in computer science from the prestigious Stevens Institute of Technology.

You may hear John give his slot and video poker tips live on The Good Times Show, hosted by Rudi Schiffer and Mike Schiffer, which is broadcast from Memphis on KXIQ 1180AM Friday afternoon from from 2PM to 5PM Central Time. John is on the show from 4:30 to 5. You can listen to archives of the show on the web anytime.

Books by John Robison:

The Slot Expert's Guide to Playing Slots
John Robison
John Robison is an expert on slot machines and how to play them. John is a slot and video poker columnist and has written for many of gaming’s leading publications. He holds a master's degree in computer science from the prestigious Stevens Institute of Technology.

You may hear John give his slot and video poker tips live on The Good Times Show, hosted by Rudi Schiffer and Mike Schiffer, which is broadcast from Memphis on KXIQ 1180AM Friday afternoon from from 2PM to 5PM Central Time. John is on the show from 4:30 to 5. You can listen to archives of the show on the web anytime.

Books by John Robison:

The Slot Expert's Guide to Playing Slots