medium
Strategy
6 minThe 50% Hat Strategy
The Puzzle
Two people sit facing each other, each wearing either a red or blue hat. They can see the other's hat but not their own. Before hats are placed, they agree on a strategy. Then they must simultaneously guess their hat color. Goal: at least one must be correct. What strategy guarantees success?
Choose your answer:
Both guess 'red'
Both guess the color they see
One always says 'same as yours', other says 'different from yours'
Random guessing
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Solution
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hard
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