Polyanthus seeds - possible to germinate indoors in Summer for Autumn planting?

I planted some Polyanthus seeds a few months ago but only managed to grow eight small healthy seedlings which I'm now hardening off and will plant out in the autumn - however, I need more.

I can of course just buy plug plants in the autumn, but I'd rather grow from seed (I like the challenge )

From all that I've read the seeds require a temperature of 15C or less to germinate - perhaps they would germinate if I popped them in the fridge at 4 to 5C for a few weeks then once germinated I could leave them in a light place in a cool-ish room for the rest of the summer for planting out in the the autumn?

Would that work?

If so, is there any particular variety which is likely to be most successful?