This is a basic 75 residue design puzzle with no secondary structure filter—helical bundles welcome! Ideality scoring is also up-weighted, so players should take care that all cutpoints are closed with good geometry! See the puzzle comments for filter details. The Baker Lab will run folding predictions on your solutions for this puzzle, and those that perform well will be synthesized in the lab. Remember, you can use the Upload for Scientists button for up to 5 designs that you want us to look at, even if they are not the best-scoring solutions!