Well this thread had stayed tight and it just now had action ...
The cards of your opponents are not guessed, a rank is used, there is a table of ranks by the type of player + by the position of the villain.
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It's not really about limiting the hands, or playing few hands, someone a while ago put out a post with a range of hands, but it like this is only part of the whole, to be a winner in the long term.
There is something called range of hands in position, it is something that combined "maybe" with the suggestions of the premium hands, for those who start playing poker it can be a good strategy.
Poker is not just about receiving "AA" and getting excited, you have to analyze the position at the table, the chip stacks of your opponents, who is aggressive, who is tight, how they are playing, who has been active, tight, how they enter in the "limp" hands, how much this players raise (1.5B, 2B, 3B) etc.
And that analysis that you do with your opponents, you must do it with yourself, after that, comes the strategy applied to the type of game to apply to the tournament, not all are played the same, if it is an MTT, sit & go, or is a simple table of cash, also if it is short or long table, usually short table is 6max and long 9max but this varies.
To that add the levels or structure if it is 30 minutes, 10 minutes, 5 minutes, 3 minutes and there are up to a minute, etc...
Many other things escape me, but basically taking that into account you can then decide if you play certain hands and remember that you only have 15 seconds.
I like to play 73s from the cutoff.