Shikaku Mixed Grids - Easy to Hard - Volume 1 - 156 Puzzles
Shikaku Mixed Grids - Medium - Volume 3 - 159 Logic Puzzles
Shikaku Mixed Grids - Hard - Volume 4 - 159 Logic Puzzles
Shikaku Mixed Grids Deluxe - Easy to Hard - Volume 5 - 255 Logic Puzzles
Shikaku Mixed Grids - Easy - Volume 2 - 159 Logic Puzzles
Heyawake Mixed Grids - Medium - Volume 9 - 276 Logic Puzzles
Mini Sudoku 6x6 Deluxe - Easy to Hard - Volume 47 - 468 Puzzles
Sudoku 15x15 - Easy - Volume 23 - 276 Puzzles
Jigsaw Sudoku 9x9 Deluxe - Hard - Volume 22 - 468 Logic Puzzles
Consecutive Sudoku - Easy to Extreme - Volume 1 - 276 Logic Puzzles
Sudoku & Dragons - Dungeon Prisoner to Dungeon Master - Volume 1 - 100 Puzzles
Classic Sudoku 9x9 Travel Pocket Size Book For Kids 3 - 120 Easy to Hard Logic Puzzles For On-The-Go Holiday Fun
Anti Diagonal Sudoku 9x9 - Easy to Extreme - Volume 1 - 276 Puzzles
CalcuDoku 9x9 Deluxe - Easy to Hard - Volume 12 - 468 Puzzles
Sudoku 8x8 Deluxe - Easy to Hard - Volume 52 - 468 Puzzles
Killer Sudoku 9x9 Deluxe - Easy to Hard - Volume 6 - 462 Puzzles
Killer Sudoku 12x12 Deluxe - Easy to Hard - Volume 18 - 468 Puzzles
Samurai Sudoku Deluxe - Easy to Extreme - Volume 6 - 255 Puzzles
Mega Sudoku 16x16 - Hard - Volume 32 - 276 Puzzles
Masyu Mixed Grids - Easy to Hard - Volume 1 - 276 Puzzles
