New Hat Logic Puzzle Challenges Readers

A new twist on the classic 'common knowledge' hat riddle, titled 'Chapeau!', is presented, inviting logicians to deduce facts based on the puzzle's premise.

16 Feb, 07:10 — 16 Feb, 07:10

Coverage (1 source)

The Guardian16 Feb, 07:10

Can you solve it? Chapeau! A smart new hat puzzle

Logicians and their bonnets Today’s puzzle is a new twist on a classic genre: the “common knowledge” hat riddle in which logicians deduce facts about their hats based on what they know, and what they know others know. Head sums Continue reading...

By Alex Bellos

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