At your table, the chance player 1 has
AA is 1/221, player 2 has
AA is 1/221 etc. If you have
KK at a ten
handed table, there are nine other players, so the chance of an
AA hand at your table is 9 * 1/221 which is 0.04 or 1/25.
So when you have kings, you will be up against aces once in 25 hands.
There are 1326 different possible hands and 6 ways to make a
pair. Thats how you get the 1/221 figure: it is 6/1326. It also how you get the chances of getting any
pair, which is 13 *6/1326 = 1/17.
So if you want to know the chances of a higher
pocket pair, you count up the number of possible higher pairs, divide by 1326 and multiply the number of other people at the table. eg.
If you have
JJ, there are 18 possible overpairs (6 Aces, 6 Kings and 6 Queens). If you are dealt
JJ at a nine
handed table, the chances of a higher
pair are:
18/1326 * 8 = 0.108 or approximately 1/9.