Hard mode doesn't change the optimal strategy much. It just makes a small fraction of words "insta-lose" because if play one and get unlucky, you'll have to swi

Hard mode doesn't change the optimal strategy much. It just makes a small fraction of words "insta-lose" because if play one and get unlucky, you'll have to switch to eliminating one letter at a time and probably run out of turns before you've covered all possibilities.