Printable Expert practice grids

Empty grids with Killer cage sum clues at standard label corners (solve using rows, columns, boxes, cages). Each puzzle has one solution.

About Expert printable puzzles

The toughest printable level. Best for puzzle enthusiasts who enjoy advanced techniques like X-Wing and Swordfish. Ideal for focused solving sessions. Generated with a unique solution—no guessing, pure logic.

How they're generated: Each puzzle is created on demand with exactly one solution. Difficulty is determined by how many numbers we leave in the grid. The same generator powers our online play and print pages. Printable beginner guide.

Target audience: Free for everyone—no sign-up, no app. Suitable for all ages: students, parents, teachers, and puzzle lovers. Use at home, in the classroom, or on the go. About ProPuz