Shikaku Mixed Grids - Easy to Hard - Volume 1 - 156 Puzzles
Shikaku Mixed Grids - Hard - Volume 4 - 159 Logic Puzzles
Shikaku Mixed Grids - Easy - Volume 2 - 159 Logic Puzzles
Shikaku Mixed Grids Deluxe - Easy to Hard - Volume 5 - 255 Logic Puzzles
Shikaku Mixed Grids - Medium - Volume 3 - 159 Logic Puzzles
Sudoku 15x15 - Easy - Volume 23 - 276 Puzzles
Jigsaw Sudoku 12x12 - Extreme - Volume 19 - 276 Puzzles
Binary Puzzles 14x14 Deluxe - Easy to Hard - Volume 12 - 468 Puzzles
Flower Sudoku - Easy to Extreme - Volume 1 - 276 Logic Puzzles
Frame Sudoku - Volume 1 - 276 Logic Puzzles
Sudoku Travel Pocket Size Book 6 - 120 Easy to Medium Logic Puzzles For On-The-Go Holiday Fun
Jigsaw Sudoku 9x9 Deluxe - Extreme - Volume 23 - 468 Logic Puzzles
Tridoku - Medium - Volume 3 - 276 Puzzles
Large Sudoku 12x12 - Hard - Volume 18 - 276 Puzzles
Samurai Sudoku - Hard - Volume 4 - 159 Puzzles
Huge Hashi Mixed Grids Deluxe - Volume 2 - 255 Puzzles
Classic Sudoku For Kids 9x9 - Medium - Volume 14 - 145 Logic Puzzles
Sudoku X 12x12 - Hard to Extreme - Volume 8 - 276 Puzzles
Killer Sudoku 10x10 Deluxe - Easy to Hard - Volume 12 - 459 Puzzles
Sudoku Travel Pocket Size Book 2 - 120 Easy Logic Puzzles For On-The-Go Holiday Fun
