To sit down at the table you need to choose the right tournament. For beginners, they are all the same, only the price is different. I pay attention to the starting stack, the initial level of blinds, changes in levels, their duration. With your initial stack of 20 BB, you can only stick to the strategy of push-fold, there is no place for maneuver. For me, the tournament should be held at a certain pace, allowing to gain an advantage over weaker players, so the tournament with a deep structure is more interesting.
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