Probability

Probability Strategy

Definition

A probability strategy treats each candidate as having a likelihood and each guess as a bet, selecting moves that maximise expected information or expected solve chance given the odds.

Why it matters

Replacing hunches with probabilistic reasoning is the core shift that lowers a player's average solve count.

Examples

  • Preferring a probe that splits candidates evenly.
  • Switching to the likeliest answer when guesses run low.

Best practices

  • Estimate candidate likelihoods, not certainties.
  • Choose for best expected outcome.

Frequently asked

Do I need formal probability?

No — relative likelihood judgements are enough for strong play.

Related concepts