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(#5262652) Re: Four Coins: Another puzzle of 12 coins
Posted by Nigel on 27 Jul 2021 at 3:15AM
Well, I have a similar one, with 12 coins. You have maximum three chances at weighing coins against each other, and then find the defective one, and also say whether it is heavier or lighter.
(The original puzzle, which was put to me more than 40 years ago, was about billiard balls instead of coins).
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