User contributions
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- 00:46, 1 March 2020 (diff | hist) . . (+316) . . Solutions to puzzles (→Puzzle 2: Added solution to puzzle 2)
- 23:51, 29 February 2020 (diff | hist) . . (+720) . . Solutions to puzzles (→Bert Enderton: posted a solution to Enderton puzzle 1)
- 20:54, 29 February 2020 (diff | hist) . . (+52) . . Claude Berge's puzzles (Added Hayward as a reference for the puzzles. Note: van Rijswijck and Hayward have different versions of Puzzle 5.)
- 20:51, 29 February 2020 (diff | hist) . . (-421) . . Claude Berge's puzzles (Corrected Berge's puzzle 4. This is the actual puzzle reproduced in both Van Rijswijck and Hayward)
- 20:26, 29 February 2020 (diff | hist) . . (+715) . . Claude Berge's puzzles (→Puzzles: Added Berge's puzzles 3 and 5, as reproduced in Hayward "Berge and the Art of Hex")
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