Thing is that I did hundreds if not thousands of equity calculations for my individual hands vs my opponent's range before moving on to range vs range stuff. I suggest you do the same.
Quote:
if so what information shows you this?
When you see someone make a play that you wouldn't make, there is one of two things happening:
a) your opponent is better than you and you can learn something new.
b) your opponent is making a mistake that you can exploit.
Once you decide which event is occurring then you have a few options.
For example:
Once upon a time I was playing 3 handed no limit holdem. Saw a guy raise preflop, bet all the way, and showdown a flush with 53s on the button.
I decided to adjust my default strategy in a few ways:
3 bet more preflop
Call more preflop.
Raise for value more postflop.
Call more postflop.
Get to showdown more often.
So then this happened:
He raises 3x on the button, I 3 bet AKo in the big blind, he calls.
flop: T73 all diamonds.
I check call 1/2 pot.
turn 4o
checks through.
7o
I check call 3/4 pot and win vs QJo.
Normally I'd fold the river but with the information that he can open on the button with 53s I pegged him as an overaggressive player and I went for the exploit.