Hidden pieces – Jigsaw Puzzles for iPad Pro Review

Purchased 3 sets of these puzzles and most are great BUT many times When only one or two pieces left they are hiding behind the puzzle. On 3occasions I was unable to drag the last piece after 5 minutes or more out and ended up with that puzzle reset. there needs to be a way to get hidden pieces out. Bought 3more sets of these great puzzles still having the hidden piece problem. Am I the only one having this problem? Is it because I have a mini-iPad? Please help!!!
Review by Mrphixit on Jigsaw Puzzles for iPad Pro.