Hi,

Sorry if this is in the wrong forum.

I watched a video recommending some pre-flop ranges for NLH that were based on a sim.

Just wondering how they work (or how do the sims work in general)? Do they run many runouts with different strategies or analyze databases of real hands or some other method? Do they randomly simulate hands or are they powerful enough to explore every node is what i'm getting at.

I would have thought preflop too complex and vast to be analyzed by a computer, since there are so many variables e.g possible boards with differing strategies and bet sizes. Although this seems not to be the case.

Thanks if anyone can explain this, I had a quick look on google but to no avail.