On International i am on board two with one key already. I just completed an objective which got me three extra rolls and i actually landed on something (key and two prizes) each time. Which nearly gave me a heart attack, lol. On UK i am still on board one, but i am just dancing round the exit at the moment, as i haven't rolled what i need to get to the next board yet. xD But i have a Shire, so i am super happy anyways.
But my darn Knabstrupper Uni mare is driving me ballistic on UK at the moment. I've bred her 10 times now and i've only had one Unicorn foal out of her and that was on the very first breeding.
Though a while ago i bought a fully blupped PBSH uni mare for only 100k and i have bred her 5 times now and 3 of those have been Unicorn Colts, which is awesome!

I did use an Orchid on her, but it was totally worth it.