Originally Posted by Matthew Southall
The only thing I've been told so far is:
1) Position is important because you get the most information - why? When someone checks OOP, they're not necessarily representing weakness. They could be planning a check-raise or they might be slow-playing the nuts. It might be a trap. Please show me exactly how being in position gives you an advantage in reading a tricky opponent.
2) Good players use position - yes, I prefaced this thread by saying that I've always used position myself and I open up wider on the button than I do under the gun, I just want to know why position is so good, rather than accepting it as truth and not questioning it.
1. If your opponent checks, you get to choose your action with the information that they checked. Meanwhile, they had to make their check with no information about your actions. You have a greater chance of exploiting your opponent than he does of exploiting you with this additional information. Sure, he might be planning a check-raise, but what if you check behind him with showdown value? Even if he does check-raise, is his check-raising range actually balanced between value and bluffs? If not, you can easily make exploitative folds or calls in response.
2. Poker is a game of information. The object of the game is to make inferences about your opponents' hand ranges based on their actions, and then respond with appropriate action. Players in later position receive more information, and therefore can make more accurate inferences, leading to a game-play advantage.