Shikaku Mixed Grids - Easy to Hard - Volume 1 - 156 Puzzles
Shikaku Mixed Grids Deluxe - Easy to Hard - Volume 5 - 255 Logic Puzzles
Shikaku Mixed Grids - Hard - Volume 4 - 159 Logic Puzzles
Shikaku Mixed Grids - Easy - Volume 2 - 159 Logic Puzzles
Shikaku Mixed Grids - Medium - Volume 3 - 159 Logic Puzzles
Frame Sudoku Large Print - Volume 2 - 276 Logic Puzzles
Samurai Sudoku - Hard - Volume 4 - 159 Puzzles
Sudoku For Kids 8x8 - Easy to Hard - Volume 2 - 145 Puzzles
Star Sudoku - Hard - Volume 4 - 276 Logic Puzzles
Classic Sudoku 9x9 - Extreme - Volume 5 - 276 Puzzles
Heyawake Mixed Grids Deluxe - Easy to Hard - Volume 12 - 474 Logic Puzzles
Jigsaw Sudoku 10x10 Deluxe - Extreme - Volume 24 - 468 Logic Puzzles
Classic Sudoku 9x9 Deluxe - Hard - Volume 54 - 468 Logic Puzzles
Hoshi Sudoku - Extreme - Volume 5 - 276 Puzzles
Sudoku 8x8 - Easy - Volume 49 - 276 Puzzles
Mega Sudoku 16x16 Deluxe - Easy to Extreme - Volume 35 - 468 Puzzles
Classic Sudoku 9x9 Deluxe - Easy to Extreme - Volume 7 - 468 Puzzles
Consecutive Sudoku - Medium - Volume 3 - 276 Logic Puzzles
Jigsaw Sudoku 9x9 Deluxe - Hard - Volume 22 - 468 Logic Puzzles
CalcuDoku Mixed Grids Deluxe - Easy to Hard - Volume 6 - 468 Puzzles
