Cool idea, couldn't pass level 5 though :D
Don't worry, it took me a while to figure it out also, as @takje created that level :)
Haha, not sure what exactly is blocking you but one of the 4 moves is a move of the Tetris block ;-)
Ah now I've made it :) i was not aware that you can move the tetris blocks when they are all the way down. No i'll try to finish the game, really great game idea!