Yes, it is that time of year — Pi Day (March 14, or 3/14 in North American month/day date notation) is here.

So in honor of the occasion, I have constructed a new crossword puzzle — see below. This puzzle honors several of the key persons through history who have made significant contributions to the theory and computation of Pi.

This puzzle conforms to the New York Times crossword conventions. As far as difficulty level, it would be comparable to the NYT Tuesday or Wednesday puzzles (the NYT puzzles are graded each week from Monday [easiest] to Saturday [most difficult]).

If you would like a full-page version of the puzzle suitable for printout, click here: FULL-PAGE VERSION.

[Added 29 Feb 2020] I am happy to announce that Nadia Lafrenière of Dartmouth College has submitted a solution, and has been awarded a Pi-Lingual coffee mug. Congratulations to Nadia!

[Added 3 Mar 2020] Ross Blocher, co-host of the popular podcast “Oh no, Ross and Carrie!”, who last year was the first to post a solution to the 2019 Pi Day crossword puzzle, has also submitted a correct solution, and has also been sent a Pi-Lingual coffee mug. Congratulations again to Ross!

[Added 14 Mar 2020] Here is the solution (no peeking if you haven’t already tried to solve it!): SOLUTION.