Sit & Solve Simple Sudoku
Frank Longo
Sit & Solve Tough Sudoku
Sudoku Puzzles for a Road Trip
Sudoku Puzzles for the Weekend
Martial Arts Sudoku® 2023 Day-to-Day Calendar
Martial Arts Sudoku® 2024 Day-to-Day Calendar
Blockbuster Book of Sudoku
The Peaceful Mind Book of Sudoku
Large Print Wordoku
Way Beyond Black Belt Sudoku®