Fixing a broken puzzle is easy and only takes 30 seconds. What do you need to do it?
How to do it? Attach the pieces being carefull not to leave space between the broken parts, or you will have to deal with a loose piece once attached with Scotch tape. Apply a big piece of scotch tape (bigger than the whole tile) to the united parts. Turn the piece upside-down and repeat the scotch positioning. Burn the scotch in advance, withouth inhaling the smoke. And... Fixed!