When your stack size is greater than your opponents', you should generally play tighter from early position and looser from late position. Avoiding difficult situations and increasing your chances of winning largeslots bet pots can be achieved by playing premium hands like pocket pairs, big suited connectors, and high suited aces from early position. Not only should you think about your position & stack size, but you should also be aware of your opponents' patterns and modify your pre-flop strategy accordingly. You might wish to increase the range of your raises if you observe that a certain player is frequently raising from early position.
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