Sudoku For Kids 8x8 - Hard - Volume 6 - 145 Logic Puzzles
Classic Sudoku 9x9 Deluxe - Medium - Volume 53 - 468 Logic Puzzles
Sudoku Mixed Grids - Medium - Volume 38 - 282 Puzzles
Mega Sudoku 16x16 Large Print - Hard - Volume 59 - 276 Logic Puzzles
Sudoku 10x10 Deluxe - Easy to Extreme - Volume 14 - 468 Puzzles
Sudoku 15x15 - Hard - Volume 25 - 276 Puzzles
Large Sudoku 12x12 Large Print - Easy to Extreme - Volume 20 - 276 Puzzles
Large Sudoku 12x12 - Medium - Volume 17 - 276 Puzzles
Sudoku 15x15 - Easy - Volume 23 - 276 Puzzles
Classic Sudoku For Kids 9x9 - Easy - Volume 13 - 145 Logic Puzzles
Classic Sudoku 9x9 Deluxe - Hard - Volume 54 - 468 Logic Puzzles
Sudoku Mixed Grids - Easy - Volume 37 - 282 Puzzles
Mini Sudoku For Kids 6x6 - Medium - Volume 10 - 145 Logic Puzzles
Sudoku 8x8 Deluxe - Easy to Hard - Volume 52 - 468 Puzzles
Sudoku For Kids Mixed Grids - Hard - Volume 20 - 145 Logic Puzzles
Sudoku 8x8 - Hard - Volume 51 - 276 Puzzles
Mega Sudoku 16x16 Deluxe - Extreme - Volume 56 - 468 Logic Puzzles
Large Sudoku 12x12 - Easy - Volume 16 - 276 Puzzles
Classic Sudoku For Kids 9x9 - Extreme - Volume 16 - 145 Logic Puzzles
Mega Sudoku 16x16 Large Print - Easy to Extreme - Volume 34 - 276 Puzzles