103 books • 8 series
Book #1: Sudoku X - 200 Easy Puzzles 9x9 (Volume 1)
Book #1: Sudoku Jigsaw - 200 Easy Puzzles 9x9 (Volume 1)
Book #2: Sudoku X - 200 Easy Puzzles 9x9 (Volume 2)
Book #2: Sudoku Jigsaw - 200 Easy Puzzles 9x9 (Volume 2)
Book #3: Sudoku Jigsaw - 200 Easy Puzzles 9x9 (Volume 3)
Book #1: Sudoku X - 200 Easy to Master Puzzles 9x9 (Volume 1)
Book #1: Sudoku Jigsaw - 200 Easy to Master Puzzles 9x9 (Volume 1)
Book #2: Sudoku Jigsaw - 200 Easy to Master Puzzles 9x9 (Volume 2)
Book #2: Sudoku X - 200 Easy to Master Puzzles 9x9 (Volume 2)
Book #3: Sudoku X - 200 Easy to Master Puzzles 9x9 (Volume 3)
Book #1: Sudoku Jigsaw - 200 Easy to Normal Puzzles 9x9 (Volume 1)
Book #1: Sudoku X - 200 Easy to Normal Puzzles 9x9 (Volume 1)
Book #2: Sudoku Jigsaw - 200 Easy to Normal Puzzles 9x9 (Volume 2)
Book #2: Sudoku X - 200 Easy to Normal Puzzles 9x9 (Volume 2)
Book #3: Sudoku Jigsaw - 200 Easy to Normal Puzzles 9x9 (Volume 3)
Book #1: Sudoku Jigsaw - 200 Hard Puzzles 9x9 (Volume 1)
Book #1: Sudoku X - 200 Hard Puzzles 9x9 (Volume 1)
Book #2: Sudoku X - 200 Hard Puzzles 9x9 (Volume 2)
Book #2: Sudoku Jigsaw - 200 Hard Puzzles 9x9 (Volume 2)
Book #3: Sudoku Jigsaw - 200 Hard Puzzles 9x9 (Volume 3)
Book #1: Sudoku X - 200 Hard to Master Puzzles 9x9 (Volume 1)
Book #1: Sudoku Jigsaw - 200 Hard to Master Puzzles 9x9 (Volume 1)
Book #2: Sudoku Jigsaw - 200 Hard to Master Puzzles 9x9 (Volume 2)
Book #3: Sudoku Jigsaw - 200 Hard to Master Puzzles 9x9 (Volume 3)
Book #4: Sudoku X - 200 Hard to Master Puzzles 9x9 (Volume 4)
Book #1: Sudoku X - 200 Master Puzzles 9x9 (Volume 1)
Book #1: Sudoku Jigsaw - 200 Master Puzzles 9x9 (Volume 1)
Book #2: Sudoku X - 200 Master Puzzles 9x9 (Volume 2)
Book #2: Sudoku Jigsaw - 200 Master Puzzles 9x9 (Volume 2)
Book #3: Sudoku X - 200 Master Puzzles 9x9 (Volume 3)
Book #1: Sudoku Jigsaw - 200 Normal Puzzles 9x9 (Volume 1)
Book #1: Sudoku X - 200 Normal Puzzles 9x9 (Volume 1)
Book #2: Sudoku Jigsaw - 200 Normal Puzzles 9x9 (Volume 2)
Book #2: Sudoku X - 200 Normal Puzzles 9x9 (Volume 2)
Book #3: Sudoku X - 200 Normal Puzzles 9x9 (Volume 3)