To Many Face Cards and 10s

[Silver Fox]

You don't have to count cards very much to see there are way to many 10 through Ace cards can be dealt. If the game is really dealing from 6 decks you can only have 6 x 5 = 30 such cards dealt between deck shuffles. I counted 86 between one shuffle -- impossible. The game may be using a true random numbers generator, but it can't be changing the odds on the next card dealt based on what has already been dealt. In other words, in an actual casino cards are not put back in the deck after they are dealt. The only way to explain the high number of 10 through Ace cards if true random numbers are used is for the game to being putting the cards back in the deck. Even then it seems "fishy" to get so many 10 through Ace cards and certainly does not simulation true casino play.

[Isbjorn]

You have some interesting observations worth commenting on.

There are fifty-two cards in each deck. Of that, five (10, J , Q, K, A) are 10+ in value. With four suits that makes twenty 10+ value cards per deck. Six decks (total 312 cards) would contain one hundred-twenty Aces, faces, and tens. So, eighty-six 10+ value cards between shuffles is pretty low (it should average ~one hundred-two based on where the burner is placed. If you counted eighty-six 10+ value cards dealt out of the shoe you observed, of the ~eighty total cards which will not be dealt (average burner card location is ~80), thirty-four are 10+ value cards. It is possible for this to occur in a single shoe.

That would be a huge advantage to the dealer. The more 10+ value cards dealt, the more chance for the dealer to bust in an honest blackjack game. However, the results from a single shoe are not statistically significant, but we would probably agree the results of a single shoe can be emotionally significant if we kill it or if we get our ass kicked :-).

The dealer should show a 10+ value card ~38.5% of the time if the deal is truly random, and my statistics over 2,000 hands (in a related post here) suggest the deal appears to be honest. I agree with you there is probably something fishy going on, but I believe it is after the cards are dealt.