Squarez puzzle game

This is a remake of the Squarez game by Eric Burgess

You are presented a 8x8 grid of 3 different symbols and a timer, 
Selecting 4 identical elements forming the edges of the square
remove the edges, refill the timer and give you points. The bigger
the square is, the more time and points you will get. Squares that
are not horizontal or 45° have bonus point and time.