I made a statement earlier in another thread that at first I thought was true, but upon reflection I don't think is. I said that if you plugged in your SB3BET ranges vs BTN and then your BB3BET ranges vs BTN on the same board, your strategy would not differ much.
But that got me thinking that if my statement is false, how does our strategy change from these two positions? We know the ranges are different, SB is linear and BB is polarized. But how does that translate into our post flop play?
It's a massive topic so instead of getting overwhelmed I decided to try to break it down from the beginning.
Let's first look at our preflop ranges.
I'll be using 50NL pokerstars rake micro ranges but they shouldn't differ much from any reasonable ranges.
SB3BET vs BTN - 197 combos.
BB 3BET vs BTN - 175 combos
BTN calling range vs SB3bet - 140 combos
BTN calling range vs BB3bet - 182 combos
Okay so the first thing we notice is that Small Blind has a wider range, not only that, but BTN has a more narrow calling range.
Even more so, BB3bet range is narrower than BTN's calling range vs a BB3bet!
What does this mean?
The first deduction we can conclude from this is that we 4bet wider (84 combos) vs a Small Blind 3bet than vs a BB 3bet (76 combos).
Why is this? BB's range is polarized so our good but not great hands would rather call vs a BB3bet but can 4bet at some frequency vs a SB linear range.
Now let's take a flop. Since the topic is Ace high boards.
Let's look at this one. A82r
A very dry and boring flop but one that we will start with.
Do you think SB and BB play this flop the same way?
Let's solve SB3bet vs BTN first.
I'll give the SB 5 sizings: 25%/33%/50%/75%/100%
The solver likes to use every size at some frequency, but that doesn't help us much since we are mere mortals. We should just be using 1 sizing for our cbets to help us eliminate mistakes and also not complicate the game tree too early on.
To help us determine which size to use, let's look at the most frequent size. Both 25% and 33% are used the most often. Also, from an exploitative view, player's most likely play worse vs smaller sizing's than bigger sizing's.
The reason for this is because it is much harder to figure out which marginal hands you have to continue with vs a smaller sizing. So we get to put our opponent's in much tougher spots on later streets.
Let's choose the 25% sizing and see what the SB does.
The solver has us cbetting a little over 80% of the time. Again, since we are not robots. I like to simplify any bet frequency over 80% as a range cbet. So let's say we cbet range here for 25% sizing.
Now let's look at the BB3bet range vs BTN. Do you think we will cbet range here? If not, why not?
Again, the solver likes the BB to cbet a wide array of sizing's. But we will simplify and figure out 1) Which size is used most often 2) Which size population will have the most trouble against.
25% sizing win's out again. Let's see if it's close to our SB counter part in frequency.
58.2% vs 82.6%! That's an almost 25% frequency discrepancy from SB to BB on the exact same board
In fact, Ace high boards are so dramatic.
That BB does not cbet 80% frequency (i.e. range bet) on ANY Ace high boards ever. Not one!
Compare that to the SB that will range cbet on many Ace high boards and we can see a huge shift in strategy.
The reason for this I believe is that most of the Suited Aces will just be called preflop from the BB, also hands like ATo/AJo/AQo will get called more often than 3bet. So there is a huge gap in Ax hands when it comes to 3bet pots.
Likewise, SB has almost all suited Aces and AJo/AQo. Which gives him a significant advantage on any Ace high board.
This turned out to be longer than I thought and I've only done 1 board. So I'll just leave it at that. Maybe this isn't helpful to the end bosses but I thought it was a pretty cool way to differentiate between SB vs BB 3BET ranges and how we maneuver post flop.
Edit: Looks like I got a little carried away at the end. The Ace high + 2 Broadway boards can be range cbet from BB but that is it.
Last edited by DooDooPoker; 07-28-2020 at 11:19 PM.