20$ super turbo ICM question

good question. I don't know the answer. I am sorry!

You got these ranges using the holdemresources.net calculator, right?

My best guess is that the algorithm uses some approximation for easier implementation/faster calculation.

You can see for yourself:

Put some random stacks and blind levels, and then change a randomly selected stack chip by chip until his pushing or calling range changes. You can get some weird results, such as

2072 chips stacksize -> push 14%
2073 chips stacksize -> push 18.2%

So basically what Im trying to say is: this calculator gives just an approximate range.

Yeah, I just send the hand from Wiz directly to Nash..
Well this sucks, because I used this method (comparing the lowest hand from the nash calling range to the pushing range equity wise) to get a better idea of the needed equity. risk premium etc. and then play around with the ranges a bit..

Why would a hand with worse equity be included in the nash calling range over a hand with better one (sorry if this seems basic )?

The calculator on the website uses linear ranges to allow more efficient calculation. This means the ranges are constructed using a hand-ranking during the Nash calculation, so hand selection will often be far from optimal.

If you need more accurate results, please take a look at the downloadable version. That version allows calculations with unrestricted ranges.