Food for Thought

"Count what is countable, measure what is measurable, and what is not measurable, make measurable." — Galileo Galilei

Food for Thought

← All printable sudoku

Printable Expert Sudoku — Free PDF

Download 50 free printable expert sudoku puzzles as PDF, organized into 5 packs of 10. Expert printable sudoku puzzles require advanced strategies such as X-Wing, XY-Wing, and Unique Rectangle. They look several moves ahead and reward patience. Every pack is US Letter size with one large puzzle per page — no registration, no email.

Chess Wisdom

"Even the laziest king flees wildly in the face of a double check!" — Aaron Nimzowitsch

Chess Wisdom

Solving Expert Sudoku on Paper

Expert printable sudoku puzzles require advanced strategies such as X-Wing, XY-Wing, and Unique Rectangle. They look several moves ahead and reward patience.

Bring a pencil and an eraser — pencil marks are the key to every intermediate and advanced technique. When you finish a pack, move up a level or check your solving speed online.