One ace and one 10 card or jack card automatically imply 21, so don't forget that going into the game. http://www.google.se/url?sa=t&url=http%3A%2F%2Fwww.ii81.com%2F%ec%b5%9c%ea%b3%a0%ec%9d%98-%ec%98%a8%eb%9d%bc%ec%9d%b8-%ec%b9%b4%ec%a7%80%eb%85%b8%ec%82%ac%ec%9d%b4%ed%8a%b8-%ec%b5%9c%ea%b3%a0%ec%9d%98-%ea%b2%bd%ed%97%98%2F