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105 sats \ 0 replies \ @SimpleStacker 7 Nov \ parent \ on: [Daily puzzle] Prisoner Hats science
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If the configuration is BBWW or WWBB, then prisoner 3 answers, B or W, respectively.
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If the configuration is WBWB or BWWB, then prisoner 2 answers W
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If the configuration is WBBW or BWBW, then prisoner 2 answers B
Logic:
- 4 will not answer because he has no info
- If 3 sees two of the same color, he must have the opposite color
- If the process gets to 2, then he knows that he and 1 have opposite colors.