The daily puzzles appear once every 24 hours. Players try to collect as many butterflies as possible when playing the puzzle. If you play a word on a square where a butterfly sits, you then collect that butterfly. Capturing a butterfly releases another onto the board. So, the earlier you catch a butterfly, the more chances you will have to collect more. As you fill your progress bar with butterflies, you will unlock pictures for your collection. The monthly challenge resets on the 1st of each month. Any unlocked photos will be lost at that time.