This is a little tricky. If you want perfect stars

If you're not sure about breaking that block? Use the Quick Save pattern... How?

Step 1: Play a Puzzle

Step 2: Tap "Pause" and Tap "Quick Save"

Step 3: Go tap the "Quick Save Button"

Trick 1: If you accidentally break the wrong block (And you finish the Steps)

Quit the current puzzle and DON'T ERASE the Quick save file

Trick 2: When you exit, go to the main menu of PiCross

Trick 3: Tap the "Quick Save" and done, you go back to your current puzzle without any flaws

Note 1: This is just like the normal Save thing like Pokemon or other games