I know this isn't how one should go about starting new crops, but I
did it anyway:

I bought a kiwi fruit, which was enjoyed by all, and I saved some
seeds.

I have seen kiwi vines growing in fairly temperate climates, but I
have never really looked into growing them myself.

If I get some starters from these seeds, am I likely to have any luck
growing them in my backyard? (USA Zone 6a/b) Is there a version of
kiwi that is hardy enough for my zone?

Thanks,
Mark