This week’s thrilling games (feedback by 8/11 gratefully appreciated!):

  • Paper Boxing, a classic by Sid Sackson, with a few rule twists.
  • 33 to 99, a timeless game of arithmetic combinations.


Past games, with feedback summaries:

  • Arpeggios, a dice game of ascending and descending sequences
  • Teeko, a forgotten classic intended to rival chess and checkers
  • Order & Chaos, an asymmetric variant of tic-tac-toe
  • Mirror, Mirror, an adversarial 15-puzzle
  • Dandelions, a game of wind vs. flowers
  • Humility (a.k.a. Outrangeous), a trivia game with no knowledge required
  • Domineering, a domino-placing game.
  • Sequencium, a chain-building game.


Past games, with feedback summaries to come:

  • Splatter, a game of carefully chosen paint explosions.
  • Corners, a game of squares hidden in plain sight.
  • Sim, a game of six dots and unexpected headaches.
  • Prophecies, a game of self-fulfilling (and self-defeating) predictions.
  • Footsteps, in which you vie for a donkey’s affections.


And while I’m at it, here are some FAQs:


What will the book tell us about the games?

I plan to treat each game as a window into mathematical thinking. There’ll be some discussion of strategy and “the underlying math,” but my main interest is more psychological. So far I’ve written chapters dealing with:

  • Our susceptibility to framing effects
  • The combinatorial nature of creativity
  • The tradeoff between confidence and precision
  • The staggering complexity of social networks


How do you pick what pronouns to use in the rules?

Where a singular pronoun is needed, I default to “they.” But if a sentence is complex enough (e.g., referring to both players in different capacities) that it becomes ambiguous as to whom “they” refers, I distinguish with “he” and “she.”