Heyho! Tryed it two Times but the Pirate Achievement want unlock :(

hi ,would you add a fullscreen option please. when i play the game i have a big black bar on the right side of the screen. thanks

My father is stuck on level 13. He has To of 30 gem of one specific kind and 1 of the others. I assume there is a trick he is missing to clear it, since there doesn't seem. To be extra gems Of the kind to get. Anyone knows how to clear it? Top I've seen done. Is 22 of any kind, using all skills. Thanks and have a nice day....