Brainfreeze Pi Day 2010 Sudoku Challenge!

This year, Brainfreeze Puzzles gave us an easy one, and we’ve solved it already!

To celebrate Pi Day, the given clues are the first 18 digits of π = 3.14159265358979323…

This puzzle only has 18 clues! That is conjectured to be the least number of clues that a unique-solution rotationally symmetric puzzle can have.

Yes, this year’s puzzle was too easy, so we’re trying the more freezier puzzle, next!

Let us know how you did — We can tell you if you got it right — and be sure to submit your entry to Brainfreeze Puzzles!