12x12 Hard Sudoku – Horizontal

Yearning for a broader layout while you tackle a sizable Sudoku board? Our Sudoku might be exactly what you’re looking for. The puzzle spans the width of the page, creating an open, easy-to-view playing field. With a Hard difficulty setting, even experienced solvers will need to be systematic and thorough, verifying each possible digit before settling on the correct answer.

You’ll never worry about hidden fees here—our puzzle generator is entirely free. Generate a batch for yourself or share them at group events to see who can complete this larger grid first. Remember that you can always customize your puzzle preferences by hitting the “edit settings” button. Feel free to explore different Sudoku dimensions or switch to a different difficulty if you want to dial down or ramp up the challenge. Once you’re done, simply print and immerse yourself in an entertaining mental workout.