Game Theory

Game theory studies how people make decisions when the outcome depends on more than just their own choice — sometimes because someone else is choosing too, and sometimes because someone else simply knows something you don't. Two classic puzzles below: a game-show scenario where switching your guess is secretly the better strategy, and a pricing standoff where the individually safest choice for each side leaves both worse off.

Pick a tab below to try one.

What this teaches: Play the Monty Hall problem and a price-war prisoner's dilemma to see the strategies behind each. It teaches conditional probability, dominant strategies, and why choices that are individually safest can leave everyone worse off.

Game Theory — Monty Hall and the Price War model — is named outright in DAVHILL’s Artificial Intelligence 101 (opens in a new tab) syllabus.