Meet the maker
Silica S.
"Every grid is a small reflection of life — patterns hidden in chaos, clarity waiting just a few steps away."
I'm a data scientist who builds puzzle books for curious minds at every age. Each collection is handcrafted to challenge without overwhelming — whether you're a child building confidence with math puzzles, an adult finding quiet focus, a senior keeping sharp, or a traveller looking for something better than an empty seat.
When I'm not making puzzles, you'll find me running. Somewhere between mile two and a useful idea — that's where the best puzzles come from.
What we create
Books for every stage of life
For Kids
CrossMath books (ages 7–12) that build maths confidence through play, not drills.
For Adults
200-puzzle collections and Travel Sudoku Journals designed for quiet thinkers.
For Seniors
Large-print CrossMath with 500 puzzles per volume — comfortable and engaging.
For Travellers
Slim 5×6 Sudoku Journals with journaling space for travel memories.
Browse all books
Explore the full catalogue — CrossMath, Sudoku, large print, travel journals, and German editions.
Play online
Try a free daily puzzle — Sudoku, CrossMath, Jigsaw, Arrow Sudoku, and more.
Free downloads
Printable puzzle sheets, classroom resources, and activity packs.
"Challenge without overwhelming — that's the idea behind every puzzle. Designed for quiet thinkers who want to stay sharp while taking time off from the noise."
— Founded with care and curiosity