I am mentioning luck because there are certain parts which I find quite useless, such as 4 unconnected squares, or a 'cross-like' part. Others are usually easy to combine with each other, what means that there's no unique solution, or any predetermined pattern you must figure out and stick to in order to win. Parts are generated randomly and in random order, so you need to be creative and follow your intuition, which, as I already said, does not guarantee success.

As you will probably see yourself, this is only 1 level game. Once you complete the level, you can either reload the whole page for a replay, or move on to something else. The only usefull button I see there is 'cancel' which allows you to cancel the game at any point and restart, which is useful in case when you see that you are obviously taking the wrong course.

And one more thing. Not sure whether it's a bug or 'feature', but some parts just won't drop at the position you ordered them. They just slide to side or they even fit to a neighboring square, which is frustrating because it could ruin what you've been building to that moment.

If I were to give any marks for this game, that would be like 2 out of 5 stars, just for the effort.