You may come across a puzzle that for some reason you decide not to play. Sometimes you might not like the theme (e.g. spiders!), or maybe you started it and it just wasn't fun. Fortunately there's a way to hide the puzzle so you don't see it anymore.
You can hide a puzzle by tapping the difficulty level the puzzle you want to hide is in (Casual 4X5 for example). Next tap Select and either Select All, or choose one or more puzzles you wish to hide, then tap Hide. The puzzle will be kept in the hidden section on the More page if you change your mind.
To unhide a puzzle(s), Tap the More button at the bottom of the home screen. Next, tap Hidden to enter your hidden puzzles. Tap Select and either Select All, or choose one or more puzzles you wish to unhide, then tap the Unhide. They’ll be waiting for you on the main page, ready to play. Just tap the Puzzles button at the bottom to return to the Puzzle Gallery.