The game, idea, visuals and audio are addictive, but i am now getting up to about 25000 points and whatever i do, i can not get further. so every game ends with a big bad withdrawal symptom of "why did i play it again"... I do correctly try to place tiles perfectly (6 matches), but i never get any of the tiles missing for this. I guess i would have to know by heart the statistics of what tiles are rendered and avoid creating upfront patterns that would result in tiles missing that (almost) never show up, but that is several magnitudes of difficulty harder than what i manage to learn. The solution would be extremely easy: Provide different levels of difficulty. A less difficult setting than what the game has now would would provide more fitting tiles to be handed out. Also: single tile backtrack, aka: one level of undo is required for misclicking because when you pull the board with left mouse button, this can easily happen. Giving one star to motivate developers to add these IMHO relatively easy but crucial features to make gameplay really enjoyable for someone like me.