(1) If every player in a 6max game has say, 1bb, then opening ranges will be drastically different than if every player has 1000bbs.
(2) Optimal play (as far as I've seen) for 100bb stacks seems to point in the direction of RFI for UTG:~17% MP:~18% CO:~26% etc. (Pokersnowie opens these ranges I think).
I've seen (2) explained like this: UTG should open 1/6=17%. MP should open 1/5=20%. etc. Plus there needs to be a "positional coefficient" so that the button opens more than 33% because of the positional advantage. But this explanation fails to take into account point (1). What I mean is, argument (2) could be used for any stack size.
So my question is (and I'm sure it's been answered many times but I can't find anything on it): How do we find the GTO RFI taking into account the 100bb?
Snowie built its ranges by testing various strategies over billions of simulated hands. You can't completely "solve" 6-max pre-flop with deep stacks, because the game tree tends towards an infinite size.
I mean, even if the pre-flop play is just between two players, there's enough stack depth to a have a 7-bet range (or even a 40-bet range if they just have a minraise war). When you factor that various other players can put money in the pot, with various ranges/strategies and using any size up to all in, and there are thousands of possible board runouts, it's impossible to 'calculate' the optimal pre-flop strategy, unless you have access to the solution for every post-flop action sequence as well.
Through datamining (e.g. analysing large hand history databases) regs/coaches have worked out more or less which hands are +EV in each position, and the RFI ranges they recommend are remarkably similar to what Snowie plays, so it would appear that for pre-flop at least, most 100bb regs are playing fairly close to "GTO", even though no one can prove what the GTO strat actually is.
