About Big Letter Puzzles

Big Letter Puzzles is made by me, Pepe Rivera, a web developer in Spain who builds the puzzle generators. I write the code, run the website, and read the email that arrives on the contact page.

What this site is for

The site offers free printable word searches, Sudoku and mazes with large, clear print. They are meant for older adults, for family members and caregivers who print puzzles for someone they look after, and for activity directors, librarians and teachers who need a stack of pages for a group. Everything is free to print for personal, classroom, library and senior-center use.

Why large print

A lot of printable puzzles squeeze in small grids and thin lines to fit more on a page. When the print is tiny, a puzzle starts to feel like an eye test instead of a pleasant way to pass an hour. Here the grids fill the page. In the PDFs, word search letters are set between 22 and 28 point in bold black type on white paper, Sudoku grids have heavy lines around every 3 by 3 box, and maze walls are thick and dark.

On the website, letters and numbers use Atkinson Hyperlegible, a typeface created by the Braille Institute of America to make characters easier to tell apart for people with low vision. I am not an eye-care professional, and I do not make health claims about puzzles. They are here to be enjoyed.

How the puzzles are generated

Every puzzle is produced by a program I wrote, not copied from another site. Each one is built from a fixed seed, so the puzzle you see on a page is exactly the one inside its PDF, and an answer key always matches.

  • Word searches start from a theme list of 24 to 30 words. The generator picks the words for the level, places them in the grid, and fills the empty squares with random letters. It then scans the grid in every direction and re-rolls the filler if it accidentally spells an unsuitable word.
  • Sudoku begins with a complete valid grid. Numbers are removed one at a time, and a number only stays removed if the puzzle still has exactly one solution.
  • Mazes are built so that every cell is connected and there is exactly one route from START to FINISH. That route becomes the answer key.

How they are checked

An automated check covers the whole collection. For word searches it reads every hidden word back out of its grid. For Sudoku it counts solutions and confirms the given numbers agree with the solution. For mazes it walks the solution path and confirms it starts at the entrance, ends at the exit, and never crosses a wall. It also confirms that every “related theme” suggestion points to a real theme. Automated checks cannot promise that a puzzle will be fun, so if something looks wrong or you have an idea for a theme, please tell me.

How the site is paid for

The puzzles are free. To cover the costs of hosting and my time, the site may show advertising from Google AdSense. The privacy policy explains what that means for your data, and the terms of use explain how you can use the puzzles.

Get in touch

Corrections, theme requests, and notes on what would make a page easier to read are all welcome. You will find the address on the contact page.