MTT: narrow range game model (boundary problem).

BelFish

BelFish

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We will consider the early stage of the tournament with stack sizes of 50BB-150BB and assume that at the first levels of the blinds, when the stack is still about 100BB, typical raises are something like this:

Raise - 3BB
3-bet - 8BB
4-bet - 20bb

And when the stack is 50BB+, then the raises are something like this:

Raise - 2.5BB
3-bet - 6.5BB
4-bet - 15bb

And let's assume (let's call it an axiom) that if there was a raise + 3-bet in front of the player and he makes a 4-bet, then he almost certainly has AA or KK, and with QQ the player will only 4-bet against a raise + 3-bet from late positions, and if the raise was from an early position, and the 3-bet was from any position, then the player will fold QQ and everything that is lower, that is, AK and JJ. Maybe I didn't quite rightly call it an axiom, - rather, the first approximation for the problem, in which we consider that the players are reasonable enough. We will also assume that limpers do not affect the situation, i.e. they either do not exist at all, or their influence is offset by increased raises.

So you can draw a table:



For such a task, we don't know how to play the rest of the hands correctly. With the rest of the hands there are raises, folds, 3-bet-folds. But for this problem, we know that if we 3-bet, then with this 3-bet we narrow down the range (of people remaining in the game) to this: JJ-AA, AK.

This is the initial task. And you need to find an approximate strategy for how to play with all the other hands, that is, you need to find an equilibrium strategy for playing under such conditions. Here we are not looking for some GTO, but a simplified tight game strategy that would give good results.

And this strategy will be only a basic game, which can already be adjusted (deviated from it) depending on all known conditions in specific spots.

- - - - - - - - - - - - - -

And since the topic is called "narrow range game model", it would be nice to start by figuring out how to play correctly in all possible spots with JJ-AA, AK hands. (As part of the basic strategy - without preflop slowplay).

Obviously, with all these hands, if we act first, we should raise. So first we need to consider 3-bets, that is, how to act against raises. Let's draw another table:



In this table, you need to replace the question marks with actions. And also you need to decide for case with the first table what is the right thing to do in response if the opponent makes a 5-bet.
 
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D0nk3y Hunt3r

D0nk3y Hunt3r

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Yes, sure, though the obvious problem is that we get around 200 hands before reaching final in average field MTT. There will be tournaments where you won't even see such cards. Then what?
 
BelFish

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Here the question is not how often these cards come, but how to act when they are already in your hands and there are also 2 reraises...

This is more for situations closer to the final table, and not at the beginning of the game, when there are very tight players left at the table.

And according to these boundary conditions (assuming that people play in exactly the same way as in the presented spots), it is necessary to find the correct strategy for playing all other hands preflop.
 
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