Remember after every challenge you can save at any time if you don't you have to start all over. I learned this the hard way.
When entering Bron, go to the house with a dart board on the side. Go up the stairs and talk to the man behind the counter. Tell him you want to play and answer: make a wish, slow, first prize. It may take a few attempts, but you will get it. You can get lots of swords and sell them for 1900 Rozes each.