Level 729 alphabetty

Level 729 is stupid. You have maximum 14 plays to get all of the following: 5 6-letter words, 4 7-letter words, and 3 8-letter words. So out of 14 plays, you have 2 to spare. The result is that after only three plays, if you have not got any words yet, there is no sense playing further.  End result, go through 5 lives in as many minutes. And then they load the thing up with hiding letters, and blocks... I don't mind if they are difficult, if I get play time out of it. This is just so stupid.