When you get squeezed you have to fold almost anything since you’re already capped. That’s 3bb lost per hand, 300bb/100hands.So when you call you have to recover that 3bb you lose every time you fold plus the rake you pay. If the rake is low and the population doesn’t squeeze much, you can call much wider.One reason you defend wider on the BB is that you’re guaranteed to see a flop.Folding vs a squeeze after you call an open raise will hurt your EV a lot.

This phenomenom is called "Gap-concept"
Defending vs strong ranges given the mentioned positions offer several problems:

1) If we flat we play a condensed range vs an uncapped range. This means that we have to make a lot of marginal calls and are often unable to realize our equity. The fact beeing IP doesnt encounter enough that we face a pretty strong range.

2) We cant 3bet too light vs this strong range. My preflopssolver advices a 9% linear range vs an UTG-Open of 19% (which is already pretty loose for a lot of stakes) and is playing a 3B/F-strategy only. We will face 4bets too often and even if we get flatted, we have to deal with a strong range (wich again encounters position quite a bit).

3) There is still players left to act that also might recognize that your range is condensed and heavilly capped. We might get squeezed here pretty frequently and will have trouble to defend accordingly (Preflop and postflop).

4) Even if we dont get squeezed, other players get offered qiute good potodds and come along, which also makes it pretty hard to realize our equity.

Thats why in general a flattingrange needs no be stronger than an opening-range. There is kind of a gap between.

RaoulFlush

@ only $18.99/month for the pro sub, Preflopguru seems quite intriguing.