blackjack slot machines

i need to know if a blackjack machine I am playing is legitimate.i play at an Indian casino with the following rules.
BJ pays 3-2, double down on any 2 cards, split pairs once, double down after splitting except aces. 4 decks, shuffle after 80 cards, late surrender. This game is a .534 loser according to Wong's charts. i have put through $350,000 in action with a loss of $9,513 average bet of $20. this is a loss of 2.67% which in all probability is almost impossible.

i need to know if they can program a blackjack machine to pay less than the true odds.

sincerely

Vic Asta

That's how federal elections are conducted.

victor asta,

First of all, you didn't specify the dealer's action on soft 17 (S17 or H17: I assumed H17 below). Also, when you say "after 80 cards", I assume you meant 80 cards dealt (so a penetration of 80/204 = 39.2%), rather than 80 cards cut off.

To answer your question, we need to know your EV and Standard Deviation (SD), which depend on your strategy and your bet schedule.

For example, if you're simply flat-betting $20 per round and using HiLo for the index plays, then your EV would be about -0.516% (or -$0.1033/rd) and your SD would be about 1.1375 units/round (or $22.75/rd). On the other hand, if you're using HiLo and spreading $5 to $140 ($5 at 0 & below, $40 at +1, $100 at +2, and $140 at +3 & up), then your EV would be +0.680% (or +$0.1355/rd) and your SD would be 8.928 units/rd (or $44.64/rd). In either case, your average bet would be $20 (actually $19.94 in the latter case), but your distribution of results would be quite different.

Your chances of going -$9,513 or worse in 17,500 rounds ($350K/$20/rd) in the flat-betting case are 0.52% (very small, but still only -2.56 SD's), while in the spreading case are 2.21%: small, but only -2.01 SD's and so still not incredible.

Hope this helps!

Dog Hand

dealer hits soft 17, and penetration is 80 cards then shuffle. i think that 80 cards is not enough penetration to count or make a difference. therefore, i am playing a straight 20 dollars every hand. I will find out about the deviation as my buddy is an expert with the deviations. he is the one that thinks there may be a problem as he figures that my results are near improbable. thanks for the response it helps a lot

sincerely

vic

victor asta,

For some reason, I had the pen set to "86" instead of "80" in my previous post... for some reason, "86" sprang immediately to mind :-P

Dog Hand

1. I suggest you Google some old posts of mine (even I don't know offhand where they are...) about 4 years back on Sonny's old forum. More complete info there.

2. Each state has it's own rules about machines mimicking card games. In NV for example the machine MUST simulate, exactly, an n-deck game.
Many states have no such laws, and

3. yes it is possible to set some machines for an x% payoff. Not a true simulation of an n-deck game.

4. As Dog hand explained, your results are statistically meaningless. It would take a lot more to come to any conclusions.

5. Congratulations as to the high playthrough you managed... I played a promo on a bj machine and wore my fingers out putting through close to seven figures...

If it was me, I wouldn't play this type of machine in an Indian casino.