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Preflop Solutions 6-max Question

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Preflop Solutions 6-max Question

Hello, I have a question for people who worked with 6-max preflop softwares (like simple GTO).

Say CO opens and BTN 3-bets, SB and BB fold. When building the CO defending range, will the solver take into account that SB and BB were yet to act and defend less than it would heads-up as a result?

To make things simple let's say you open CO to 3 bb 30% of the time, BTN 3-bets to 9 bb and CO decides to play 4-bet or fold. You'll need to defend 30x0.33 (9/13.5) = 10% of the time. But let's say SB and BB both cold 4-bet 5% of the time each.

1) Will CO still defend 30x0.33 = 10% of the time when it gets folded back to it?
2) Or will it defend 30x0.23 (0.33 - 0.05 - 0.05) = 6.9% of the time?

I know it's an exagerated oversimplified model and it's more complicated that just calculating the MDF, but I do want to know if the solver takes SB and BB into account when building CO defending range and I'm worried that if I don't oversimplify it I'm gonna get a non-answer.

Thank you for reading this.

3 Comments

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BigFiszh 4 years ago

A solver can only work with what he's given. If he does not know of the existence of SB and BB he can't take that into account. Imagine you solve for UTG vs. MP 3-bet. Then there are four additional players missing - and a preflop solver essentially had to solve a scenario with six players to get to the right answer.

Pio only takes two players (IP, OOP), so it ignores the additional defense work of other live players. Simple Preflop can calculate more players, so you could define a model with CO, BTN, SB and BB - but computing time will grow exponentially.

Seven777 4 years ago

Hello, I'm aware of that, and I wanted to know from the players who worked with both Simple Preflop and Pio Edge if the player facing the 3-bet folded less when modeling for 6-max instead of just inputing 2 players.

Does anyone know the answer please?

BigFiszh 4 years ago

the player facing the 3-bet folded less when modeling for 6-max

The other way round.

I can't answer the question, but there are two factors that affect the defense frequency and both shall lower the defense% of the OR, if there are more active players:

1) Active players support the defense%.
2) Active players folding increase the probability of the 3bettor having a strong hand.

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