It is 5 identical charms in a vertical row to release both hearts simultaneously. U don't need to demolish the boulder wall completely to win. In addition, collect minimal required amount of charms. R.P.

I got it! Just a complete fluke...ithe amount is 5 identical charms in a vertical row. That move released both hearts from their cages simultaneously. I had only two rows of the boulder walls completely opened, but acquired a minimum amount of charms needed 60 or more. U don't need to completely demolish the boulder wall to win. Yay & yipee! R.P.