15x15 Hard Sudoku – Vertical (4 On Page)

If you’re itching for a more expansive board, our 4 On Page Sudoku Hard 15x15 Vertical layout might be the perfect match. This format arranges four tall 15x15 puzzles on one sheet, guaranteeing plenty of space to hone your logic skills. The Hard difficulty level means you’ll need to employ advanced strategies, whether it’s scanning, cross-hatching, or more intricate techniques, to complete these robust puzzles.

Thanks to our free Sudoku generator, you can tailor these puzzles to your exact liking. Click the “edit settings” button to switch difficulty modes—maybe you’d prefer a Very Hard challenge—or scale down to 4x4 if you need a quick practice round. With unlimited downloads available at no charge, there’s no limit to how many times you can mix and match puzzle formats. Once you finalize your selections, just download and print your puzzle sheets for an engaging offline activity. It’s a convenient way to keep your mind sharp and have fun doing it.