to have a pure breed set of chicks you want the rooster and hen to be the same breed ?
If you have the rooster from one breed and the hen from a different breed, what is the type of breed of the chicks ?
Just wondering how this works .
To have pure bred chicks you do need both parents to come from the same breed.
If you cross two breeds, you have hybrids.
If there's more than 3 breeds in the mix, they're mutts (unless you go to the trouble of trying to get them to a standard of look, utility, or performance over the course of years...then it's a breed again...)
That said, if all you're looking for are more chicks to grow into eaters or layers, then mixed breed chickens are awesome! They tend to be very hardy (cross breed vigor) and have mixed up genes so you get more variety in size, colors, activity levels, laying ability, et al.
If you're crossing on purpose for more layers, it's best to get a rooster from a breed that lays well to cover your laying hens. Then you retain the laying ability.
Note some 'breeds' aren't. They're hybrids themselves, like the ISA Browns, Red Sex Link, Black Sex Link, Golden Comet, Ambers, et al.