I have been stuck on 6637 for over a week now. Judging by the level I am on you would think I am a pretty good player. Unfortunately, it seems, game play skills are no longer required. I used to be able to pass the impossible levels by collecting boosters but that has been reduced in recent updates to the game. If I need boosters now I have to pay cash for them. There is no skill in buying your way through a level. What used to be a fun and challenging game has now been replaced with a Pay per Play format of impossible puzzles. I see posts in Facebook groups of players near to tears and threatening to uninstall the game. COME ON KING, GIVE THE PLAYERS THE FUN GAME BACK!