Here's a Scrabble puzzle that Nick Ballard and I composed, and recently presented at the MOVES conference. See the diagram below. The game is nearing its end and you’re in dire straits. On your last turn, you bingoed with GROGSHOP, but then your opponent immediately bingoed back with UNUSUAL, taking a commanding lead of 476 points to your 344 points. On your rack, you have MONKYSZ. The tiles unseen to you are DEFJLLLQW, two of which are in the bag and seven of which are on your opponent’s...