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The Impossible Chessboard Puzzle
- ColinWright 6y agoIt's a nice puzzle, and when I first saw it several years ago I was pleased to solve it. I then performed it live as my 5-minute talk at one of the Annual MathsJam Gatherings, I think in 2015, so I probably solved it in early 2015. It's been around a lot longer than that - it was on Reddit in 2013, and I'm sure it's older. Edit: Here's a reference from 2010: https://eucalculia.blogspot.com/2010/10/prisoners-and-chessboard-solution.html https://eucalculia.blogspot.com/2010/10/prisoners-and-chessb... Now found in a January 2009 maths journal: https://web.northeastern.edu/seigen/11Magic/Articles/Two%20Applications%20of%20a%20Hamming%20Code.pdf https://web.northeastern.edu/seigen/11Magic/Articles/Two%20A... The College Mathematics Journal Contents—January 2009 Vol. 40, No. 1, pp. 2-76