Collection: Tectonic (Suguru) Puzzles

Tectonic (often called Suguru in the UK) is the clever little cousin of sudoku. Fill each outlined block with the numbers 1 up to its size, making sure the same number never touches, not even diagonally.

The rules take a minute to learn and the puzzles keep you hooked for hours. Every pack is an instant PDF download with a short how-to-play page and answers at the back. Print at home as often as you like. A fresh challenge for sudoku fans and a brilliant logic workout for curious minds of every age.