You can very quickly go from a relatively clear board to a game over just because it gives you pieces that can't fit together. Only seeing UP TO three pieces at a time limits strategy significantly, on placing that last piece, you have no idea what's coming next. Feels rather rigged. If you could rotate the pieces it would be significantly more fun. But, it often feels a bit off to place pieces even as it is, as they seem to not always gravitate towards the center of where you're dragging.