One of the simplest casino games available at online casinos has got to be Blackjack and most people know how to play; you may even have learned the game at home under the name of pontoon but actually at online casinos pontoon and blackjack are slightly different games. Some pundits will say that the idea of online blackjack is to get as close as possible to 21 without going over that total but casinos.ie disagrees with that definition and urges Irish casino blackjack players to think of beating the dealer rather than getting as close to 21 as possible. When playing blackjack online you can win with any hand as long as the dealer goes bust but if you have gone bust first then you lose even if the dealer goes bust later in the same hand. This might seem a small difference but if the dealer has 15 or 16 you know that they will draw a card which means a better than 50/50 chance of busting. When playing online blackjack at your online casino the dealer will have one card exposed and that is your only clue as to what the dealer might have when you are playing your cards so keep an eye on that card and play accordingly. A 5 or a 6 are generally recognised as being weak cards for the dealer as more cards than not will put the dealer in the danger zone of 12 to 16 where a card must be drawn but going over 21 is possible. There are of course no guarantees in online blackjack and you should not change your play dramatically but if you yourself are in the danger zone it may be worthwhile to stand at a lower total thereby gambling that the dealer will go over 21. Online blackjack is a simple game but with a little thought you can increase your chances of winning.