Archive for March 9th, 2010

Pi Day Sudoku Is Back!

March 9, 2010

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.