Our world feels chaotic, confusing and unfair, but puzzles offer clear rules, solvable problems and reward for effort expended Our world feels chaotic, confusing and unfair, but puzzles offer clear rules, solvable problems and reward for effort expended M aybe you’ve noticed it too. Everyone seems to have become fixated on puzzle games. In the morning, over coffee, I play Word Wheel on the Guardian app. Over lunch, colleagues compare notes on Tradle , the game where you guess a country from its