Valentine Sudoku
The 9×9 with a Valentine on the cover. Sweetheart is the grown-up card, with hearts tucked in the corners. Sugar Hearts is bright pink and strung with little candy hearts. Love Notes is the kid-friendly one, with hearts drifting down the page. The grid inside follows the same grading as the daily.
Valentine's sudoku generator.
Pick a card, pick a level — the preview is the puzzle that prints. A quiet Valentine that outlasts a paper card.
A standard 9×9 grid wrapped in a styled card. One solution per puzzle, difficulty grades match the moves required to solve. The previewed puzzle is the first one in your PDF.
Free printable Valentine's sudoku.
Free printable Valentine's Day sudoku, fresh every time. Choose a difficulty from beginner to expert, pick a heart-themed card — Sweetheart, Sugar Hearts, or kid-friendly Love Notes — and print with the answer key. No account, no sign-up, no watermark.
A clever little Valentine that beats a shop-bought card, and a calm classroom activity for the fourteenth. For simpler 4×4 and 6×6 grids, try our sudoku for kids.
Valentine's sudoku FAQ.
Are these Valentine's Day sudoku free to print?
Completely free — no account, no email, no watermark. Print as many as you need for a class or a galentine's night.
Do they come with an answer key?
Yes. Keep the answer-key option on and solutions print right after the puzzles.
Are they good for kids?
Yes. Love Notes and Sugar Hearts read youngest; set Beginner or Easy for younger solvers. For the youngest, our 4×4 and 6×6 kids sudoku is the better fit.
Can I use them in a classroom on the 14th?
Exactly the idea. Print a class set at Beginner, hand them out, and the room settles into it — zero prep, answer key included.
What difficulty levels are there?
Beginner through Expert (Diabolical at the top), each graded by technique and verified to have one solution.
Do I need an account?
No — pick a card, set a level, print. Nothing to sign up for.