April Fools' Text-oku


April 1st is known as April Fools’ Day.

We could have chosen to celebrate a number of events that happened on this date. In the U.S. alone, it could have been the creation of the “$” symbol (1778), the marketing of the first dishwashing machine (1889), the first U.S. national women's swimming championships (1916), and many more. But instead, we choose to celebrate – pranks. Pranks have international appeal.

Since I am not a prankster, I will take this opportunity to lighten the tone of our blog with Sudoku. Sudoku has international appeal too but it is (usually) harmless.

So, I challenge you to Text-oku, a term I coined for Sudoku puzzles made up of letters. In each line (horizontal and vertical) and each 3x3 square, make sure you have the following nine letters: A, N, a, L, Y, T, I, C, S.

Click on each puzzle to enlarge it, then print and enjoy!





SPOILER ALERT: Just in case you want to check whether your solution is correct, below you’ll find the answers in blue.

And if you need answers to your text analytics questions (no joke), you can visit the SAS Text Analytics webpage.






About Author

Dr. Biljana Belamaric Wilsey

Senior Program Manager

Biljana is a Senior Program Manager in the Text Analytics group at SAS. She holds two Master’s degrees, in English as a Second Language and Slavic Linguistics, as well as a Ph.D. in Instructional Technology. She enjoys research and writing and has had several articles published in peer-reviewed journals in the fields of computer-assisted language learning, linguistics, and higher education. Biljana considers herself a life-long learner, likes to challenge herself, and finds new experiences exciting. Outside of SAS, she enjoys traveling, playing music, teaching/learning languages, and spending time with family and friends.


  1. Leonid Batkhan on

    I love it! Great stretching exercise for our brains accustomed to numbers. Please publish more of these.

    • Dr. Biljana Belamaric Wilsey
      Dr. Biljana Belamaric Wilsey on

      Thanks so much for your positive feedback! I hope you enjoy solving them and we will create more for your text-analytical pleasure! 🙂

Leave A Reply

Back to Top