Binary search would make a good bar bet. “Pick a number between 1 and 1000. I’ll make guesses, and you just tell me whether they’re too low or too high. I’ll be

Binary search would make a good bar bet. “Pick a number between 1 and 1000. I’ll make guesses, and you just tell me whether they’re too low or too high. I’ll bet you $10 that I can guess the number in only 10 tries or less.”