It's a simple project for my university that finds the fastest way from point A to point Z using backtracking and fallowing simple rules like:
->You can only move top,down,right,left in a 2D array.
->You can only stop on positions with at last a symbol of the preview symbols (YY -> GY) OR (HY -> GH).
->You start at position 0x0 [Top left].
->Your goal is to come in the last position 4x4 [bottom right].