The difficulty is deciding when to pivot to the word you should guess. You have to throw the first 1-2 attempts against the wall in the hopes of gathering as much data as possible. Determine from here whether side (left or right) has disclosed the most information. Choose one side and stick with it to the conclusion. Enter this word as soon as you guess it, and then start guessing the second word. That's because you're saving the last effort to solve the second grid, rather than both, which is no longer feasible.
