Carnival of Maths #59 is up!

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clown at the carnivalThe Number Warrior is hosting this month’s carnival!  It’s up here, and I was impressed with the entries [both in number and quality].  Plus, there was even something on Bourbaki, though not the symbol I wrote on earlier.

I also really like the post right before the Carnival, about a possible case of cheating at the 2009 Philadelphia Inquirer Sudoku National Championship.  You can find some of the contest Sudoku puzzles at this pdf.

Now I want to try some Sudoku:  here’s one that’s a jigsaw puzzle (created by A.R. Nonenmacher and published under GNU-FDL)

nonomino_sudoku.svg

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