Sudoku · Books
Start with two new large-print paperbacks by GridHearth Ravenlock, or explore the Sudoku Practice collection by level and format.
GridHearth Ravenlock · 120 puzzles each
A gentler first volume and a steady Easy follow-up. Both paperbacks are listed; use each Amazon link to check current buying details.
Volume 1 · Very Easy + Easy
Paperback listed · check current price on Amazon120 puzzles · 40 Very Easy puzzles, then 80 Easy puzzles
Volume 2 · Easy
Paperback listed · check current price on Amazon120 puzzles · 120 Easy puzzles for steady practice
GridHearth Puzzles · Sudoku Practice
Four current paperbacks with 180 or 270 puzzles, organized by level.
Volume 1 · Easy
Listing on Amazon · check delivery180 puzzles · Naked and hidden singles
Volume 2 · Medium
Listing on Amazon · check delivery180 puzzles · Locked candidates and pairs
Volume 3 · Hard
Listing on Amazon · check delivery180 puzzles · Naked triples and X-Wings
Volume 4 · Mixed
Listing on Amazon · check delivery270 puzzles · Easy, Medium, Hard, and a Mixed finish