12x12 Hard Sudoku – Vertical (4 On Page)

Description:

Feed your passion for Sudoku with the 4 On Page Sudoku Hard 12x12 Vertical puzzle set. Each page is stocked with four challenging 12x12 grids, all lined up vertically for an easy-to-print format. You’ll need to stay attentive, as ensuring no repeated numbers across rows, columns, and sub-regions can be quite the mental workout—especially at the Hard difficulty level. This design is perfect for intermediate to advanced players who want a step up from smaller grids.

And don’t forget, you have total control over your puzzle experience. By clicking the “edit settings” button, you can pick another difficulty level or switch to different grid dimensions like 6x6 or 16x16 before downloading. Because it’s all free, you can generate as many puzzle pages as you like without hitting a paywall. Print out your customized layouts for quick mental exercises or extended gaming sessions. Each puzzle promises a sense of satisfaction and accomplishment once those final cells are filled correctly.

The actual PDF might look slightly different compared to what you see as a preview.
Edit Settings
Planner Theme
Original
Bright Colorful
Elegant Floral
Black & White
Download Printable PDF
Send to email Printable PDF

Customer reviews

0 of 5 stars 4.7 of 5 stars
Lori

I know I'm capable of creating and adjusting the finer details of my own calendar like this in Excel or some other program, but I've been using up my spoons with so many other things that I'm just relieved to stumble across someone who's already done it and made it available for purchase so I don't have to use up any more. I prefer filled versus bound planners because I don't have to risk overhauling the whole planner because I want to redo a few pages.  This also lets me mix and match planner styles, such as using a 15-minute planner template with specific time slots as needed to keep up with appointments and this template that I'm currently reviewing as a lesson planner. I'm using a self-paced course to train for a new career and wanted something that worked for my brain to plan specific deadlines to meet academic goals without getting bogged down by the visual noise of other daily activities. This template has been great for visualizing how many days I have left until the deadline I set and how much I need to get done each day to make sure I meet that deadline.

23 Jun, 2026
Natalie

Not necessarily a review because all of your templates are fantastic and easy to print. I am hoping that eventually you'll make an A7. I know it's tiny, but I'm not that important and don't need to write too many notes. 

05 Jun, 2026
Mark Zielberg

great planner with quick delivery

04 Apr, 2026
View on
Alison

Quick and easy to access. Love the fact I can print the templates in a variety of page sizes to fit a variety of planners.

Purchased item:

Templates Premium Access
04 Apr, 2026
View on
Angela

love these products for remarkable!

04 Apr, 2026
View on

Write a Review

Thank you for your interest! Only customers who have purchased the planner can leave a review. We appreciate your understanding.