another poster seems to be seeing the same thing i am. the board fills up too fast. perhaps reduce the amount needed to complete a set or reduce the amount of pieces added?
game isnt too bad, the sound is a bit annoying though. perhaps add a volume slider, or some variation to the sound effects, would suggest doing both though.
not bad. the graph doesnt help though, as it is not lined up with the game properly. also the pieces dont have any set color, so theres no logic in color association.