I just beat this level after being stuck on it for a few days. This is the first time I've solved a really hard level without finding advice online to help me. In other words, I'm not a master of this game so I'm pretty psyched that I figured out a fairly straightforward way to approach this level! After trying many times to build five-letter words or larger in an effort to form "exploding" blocks, I figured out that continuously building four-letter words was far more effective. The first few four-letter words you build won't benefit you, but once the magnets at the bottom get "filled up" with the little crowns you get from four-letter words, then the crowns will show up in the upper part of your main set of blocks. Once you have a crown available, use it while forming another four-letter word. Continue to do this, using a crown to form another four-letter word that, in turn, creates another crown. Each crown used will chip away at the blocks on the left where the cheese blocks are located. Once enough blocks are available on the left side to begin forming words, you can break blocks that way. But don't forget to form four-letter words on the right if you get in a bind as these seem to be the best away to slowly chip away at the blocks on the left. Good luck!