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Square Sudokus

I am really intrigued by these square sudoku puzzles from Erich Friedman. Place 16 digits in each 4 x 4 array so that every row and column contains the same 4 digits in a different order. Each rectangular box should contain the digits of a perfect square when read across or down.

square sudoku puzzle by erich friedman

Need help remembering your perfect squares? Check out my printable perfect squares chart!

square sudoku puzzles erich friedman

Puzzle Solutions

I intentionally do not make answers to the printable math puzzles I share on my blog available online because I strive to provide learning experiences for my students that are non-google-able. I would like other teachers to be able to use these puzzles in their classrooms as well without the solutions being easily found on the Internet.

However, I do recognize that us teachers are busy people and sometimes need to quickly reference an answer key to see if a student has solved a puzzle correctly or to see if they have interpreted the instructions properly.

If you are a teacher who is using these puzzles in your classroom, please send me an email at with information about what you teach and where you teach. I will be happy to forward an answer key to you.