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Outcry
Brain Teasers Lab
Choose a game. The mechanics, story, and answer breakdowns live inside each playable lab.
Game theory
Screwy Pirates
Five pirates, a hundred gold coins, and a vote that decides who walks the plank.
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Induction
Tiger and Sheep
A hundred tigers, one sheep, and a rule that turns any eater into the next meal.
Play for 15 tokens (1 lifetime play across Brain Teasers)
Game theory
The Split Deal
Two thieves, two rooms, one offer each - and no way to talk it over.
Play for 15 tokens (1 lifetime play across Brain Teasers)
Game theory
Stag or Hare
Two hunters, one stag that takes both of them, and one hare that doesn't.
Play for 15 tokens (1 lifetime play across Brain Teasers)
Game theory
One Offer, No Discussion
A hundred pounds, one proposal, and a partner who can burn it all.
Play for 15 tokens (1 lifetime play across Brain Teasers)
Game theory
The Growing Pot
Every time you pass, the money doubles - and the other player gets the chance to take it.
Play for 15 tokens (1 lifetime play across Brain Teasers)
Game theory
Two-Thirds of the Room
Everyone picks a number. The winner is closest to two-thirds of the average.
Play for 15 tokens (1 lifetime play across Brain Teasers)
Case reduction
One Seat in the Boat
A wolf, a goat, a cabbage, and a boat that only carries one of them.
Play for 15 tokens (1 lifetime play across Brain Teasers)
Probability
The Office Bet
Your colleague bets you two people in the office share a birthday. Do you take it?
Play for 15 tokens (1 lifetime play across Brain Teasers)
Conditional probability
The Third Door
You pick a door. The host opens another. Do you switch?
Play for 15 tokens (1 lifetime play across Brain Teasers)
Induction
The Line of Hats
A hundred prisoners in a line, each seeing only forwards, each guessing their own hat.
Play for 15 tokens (1 lifetime play across Brain Teasers)
Case reduction
The Rope Bridge
Four friends, a rotting bridge in the dark, and one torch between them.
Play for 15 tokens (1 lifetime play across Brain Teasers)