Bejeweled Stars level 663 is bugged

It is impossible to finish lvl 663, even with all the power-ups in the world (believe me I tried and wasted a good deal of PUs in the process), because not enough butterflies spawn within 25 moves to accomplish the task. The only way to finish that level would be to buy more moves - which I steadfastly refuse to do by principle. Too bad for that rather enjoyable game, I guess I won't be playing it anymore.

And, on a related note, even if it is difficult, it should nevertheless always be possible to finish games without resorting to the use of power-ups.