Sudoku Paper Pro

About Sudoku Paper Pro

Sudoku Paper Pro makes sudoku in fourteen variants, from 4×4 puzzles for children to killer, thermo and sandwich, each with exactly one answer and graded by the techniques it needs. Play online with hints that explain each step, or print puzzle books with the answers.

Everything happens in your browser. The engine behind it is a small program, written in Rust and compiled to WebAssembly, that runs on your own device, and what you see on the screen is what goes into the PDF.