- Pick three coins in each hand. If it's equally heavy you have in your hands a set of six true coins. Otherwise it's those you didn't weigh.
- Weigh three true coins against three unknown. Whatever the outcome you now have a set of nine true coins, right?
- Now take one true coin in each hand and one unknown coin in each hand. eeehh, why would you want to do that? aahh forget it. :-)
