If you are stock on some of the levels in the game Flow Free, you can find solutions for all levels of the 12×12 matrix here. The game is about connecting the matching colors with a pipe to create a flow. Just pair all colors, and cover the entire board to solve each puzzle.
The game is made by Big Duck Games and is currently #1 on iPad!
Flow free features 10 different board sizes with each having 30 free levels. So stay tuned for other board sizes!
Solution for board size 12×12:
Solutions for other board sizes can be found here:
Flow Free board size overview