16x16 Hard Sudoku – Vertical

Description:

For Sudoku diehards seeking the ultimate test, look no further than our Sudoku setup. Featuring an impressive 16x16 grid, it offers a colossal number of cells to fill in, combined with the complexity of Hard difficulty. This means you’ll need patience, attention to detail, and solid Sudoku strategies to ensure no duplicates appear in any row, column, or sub-block.

What’s more, our puzzle generator is 100% free. You can keep printing new variations for practice or competition, all with no hidden costs. If you decide to tweak your Sudoku session—maybe jump down to 9x9 or switch over to a Very Hard difficulty—just press the “edit settings” button. After you preview your changes, download the new PDF and you’re all set. Challenge yourself with this expansive format, and embrace the gratification of solving such a formidable puzzle on your own terms.

The actual PDF might look slightly different compared to what you see as a preview.
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Customer reviews

0 of 5 stars 4.7 of 5 stars
Mandy

Printed Perfectly! Cute design! Exactly what I was looking for!

03 Nov, 2025
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Tom

It's fun on my tablet, thank you.

Purchased item:

Supernote Sudoku Puzzles
03 Nov, 2025
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Efren Quezada

excelent for my work day

Purchased item:

reMarkable Daily Planner
02 Nov, 2025
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Jennifer

I bought this to get templates for my Supernote. There are a ton of options for all of my devices. The Supernote png is not sized for the new Manta. I was able to resize the pages myself and they look amazing on the device. The only other minor inconvenience is that it isn't always clear what I had bought access to and what had an additional price tag on it. Overall, these are minor things and I am 100% enjoying the amazing variety, clean graphics and customizations that are included. I highly recommend for anyone whether you have one device or many that you are downloading for!

Purchased item:

Templates Premium Access
02 Nov, 2025
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Terrie

Loved the layout and the versatility of the product.

31 Oct, 2025
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