← Paradoxes & riddles
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The Three Prisoners Problem
what did the warden really tell you?
Three prisoners, A, B and C, know that one of them has been chosen at random to be pardoned. A asks the warden, who knows the answer, to name one of the other two who will not be pardoned. The warden says: B will not be pardoned. Does A's chance of being pardoned go up from 1/3 to 1/2?
Source: A classic puzzle, retold by INFINITE SUM and fact-checked against our curated notes
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