Open-access content
Friday 6th July 2012
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updated 5.13pm, Wednesday 29th April 2020
Due to a typographical error published in the May 2012 issue, puzzle 504 was unsolvable. Below is the revised version along with the solution.
Download the solution to puzzle 504 (PDF)
If you have any suggestions for puzzles, please contact the puzzles editor at [email protected]
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