Pricing Rules Help!

Hi All,

I'm just looking for some advice if anyone has ever used pricing rules in this way at all please?

We're looking to see if we can offer via pricing rules an offer whereas you purchase one standard ticket at full price, you can get upto 2 half price children. Has anyone ever achieved this or any advice would be great thanks. I've tried looking at multiple price types but it's discounting my entire basket. Not even sure if it's achievable but any advice would be grateful! 

Thanks :)