Calling all Sudoku and Ken Ken buffs, we have a new addicting puzzle for you! These are tricky, but a fun spin-off of the popular Ken Ken puzzle.

Sudoku and Ken Ken enthusiasts will enjoy this mad math puzzle, full of addition, subtraction, multiplication, and division challenges.

Challenge your fourth grader to an entertaining and educational Sudoku puzzle. She won't even realize she's exercising her brain!

Build a flurry of logic skills with Snowman Sudoku for third through fifth graders!