Pirate puzzle
Definition · Level 11 · Interview practice
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Five rational pirates split 100 coins; the senior proposes and needs at least half the votes, his own included (indifferent pirates vote no): 98 for him, 1 each to pirates 3 and 5, 0 to 2 and 4 — found by working back from two pirates.
Example
Buy the votes of those who’d get nothing if you went overboard.
Where Tradecraft teaches it
Level 11 · Interview practice, in the lesson “Brainteasers: the classic set”: Crisp answers and one-line reasons for the puzzles interviewers ask most.
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