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
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Yes i like it A lot

22 Dec, 2025
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Lucjan

a very good, well-thought-out and functional organizer notebook

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Ultimate Digital Planner
21 Dec, 2025
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Kristina

This was definitely not what I was expecting. Although there is a plethora of options i was hoping to just download one huge file and be able to edit and sort without needing a hyperlink to access them as I am not very tech savvy.

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Templates Premium Access
20 Dec, 2025
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perleifect

Missing one star because I made an error not because the seller did. I thought I could edit this item in a program I use but I can't hence, the 4 star over 5. I would have given 5 star if I could use my favorite editing program.

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Traveler's Notebook Inserts
20 Dec, 2025
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Corin Staples

Great easy printable pages and good choice to find the pages that work for me.

Purchased item:

Templates Premium Access
18 Dec, 2025
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