Blackjack

5’s in Twenty-One

by Agustin on Apr.04, 2011, under Blackjack

Card Counting in chemin de fer is really a method to increase your odds of winning. If you are good at it, you’ll be able to really take the odds and put them in your favor. This works because card counters raise their bets when a deck rich in cards which are advantageous to the player comes around. As a general rule, a deck wealthy in ten’s is far better for the player, because the croupier will bust more typically, and the gambler will hit a pontoon much more often.

Most card counters keep track of the ratio of high cards, or ten’s, by counting them as a one or a – 1, and then provides the opposite 1 or minus 1 to the very low cards in the deck. Some techniques use a balanced count where the quantity of low cards may be the same as the number of ten’s.

But the most interesting card to me, mathematically, will be the five. There have been card counting methods back in the day that involved doing absolutely nothing a lot more than counting the variety of fives that had left the deck, and when the five’s have been gone, the gambler had a major advantage and would elevate his bets.

A excellent basic system player is acquiring a 99.5 % payback percentage from the gambling den. Every single 5 that has come out of the deck adds 0.67 % to the player’s expected return. (In an individual deck casino game, anyway.) That means that, all things being equal, having one five gone from the deck gives a player a small benefit more than the casino.

Having two or three five’s gone from the deck will really give the player a quite substantial advantage more than the gambling house, and this is when a card counter will typically raise his bet. The dilemma with counting five’s and nothing else is that a deck low in 5’s happens pretty rarely, so gaining a huge benefit and making a profit from that scenario only comes on rare situations.

Any card between two and eight that comes out of the deck raises the gambler’s expectation. And all nine’s. 10’s, and aces increase the gambling den’s expectation. But eight’s and 9’s have incredibly modest effects on the outcome. (An eight only adds point zero one per-cent to the gambler’s expectation, so it is normally not even counted. A nine only has 0.15 per-cent affect in the other direction, so it is not counted either.)

Comprehending the results the reduced and superior cards have on your expected return on a wager may be the initial step in understanding to count cards and play black-jack as a winner.


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