You laughed in 2008.

You cried in 2009.

This March, from the producers of *Naked Sudoku**, comes…

## PI DAY SUDOKU 2010!

As in past years, there is also a contest** associated with the puzzle, but who needs a contest when you’ve got a puzzle with the (conjectured) minimum number of clues (18 – in this puzzle, the first 18 digits of π) for a unique solution of a rotationally symmetric puzzle? Here’s a printable PDF so you can take the puzzle with you to your next meeting lunch break.

Happy solving!

**Brainfreeze Puzzles, in case you were wondering.
**Also as in past years, we will not allow a solution to be posted until after the June 1 deadline. Thank you for your cooperation.
*

March 11, 2010 at 10:51 am |

[...] … o haces un -sudoku: [...]

March 12, 2010 at 9:41 am |

Could someone please email me the PDF file? It will not open up for me. Ryakubov@keansburg.k12.nj.us

Thanks!

May 9, 2010 at 9:41 am |

Great sudoku puzzle!

You need some slightly advanced methods to solve this. You may have some help using my user-friendly Sudoku Instructions program which you will find at my website. This program can give you tips on how to solve any sudoku puzzle. Best regards, Erik

July 25, 2010 at 11:14 am |

I laughed HARD at

“from the producers of Naked Sudoku*, comes…”hahahaha. I’ve been working on this puzzle for the better part of an hour now. I’m almost there ahhhhhhh! I consider myself pretty good at Sudoku and you are cramping my style.

Just kidding, keep it up!

March 14, 2011 at 2:51 pm |

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