LogicPicColor: PuzzlePack4

This is puzzle pack 4 for the recently released game LogicPicColor.  It should only be purchased by users that already own LogicPicColor.  It contains 999 puzzles of all difficulty levels (including the new Impossible level):  424 black-n-white puzzles, 575 multi-color puzzles.  105 of which are of the new Impossible difficulty level.  The Impossible difficulty level are puzzles from 21x21 to 25x25.  These are best used on a large screen like tablets to reduce the need for scrolling.