The tiles don't get used, they give you a score :) 48 hours was a little short to implement another "side" where you get to use the tetris blocks and there's little to no benefit to writing a tetris bot that uses the extracted blots. I was considering a "bounty" system where you needed to hunt the correct block, it was one of the first concept ideas, but not way to make it challenging enough. Thanks for the valuable feedback though !