Shikaku Mixed Grids Deluxe - Easy to Hard - Volume 5 - 255 Logic Puzzles
Shikaku Mixed Grids - Easy - Volume 2 - 159 Logic Puzzles
Shikaku Mixed Grids - Hard - Volume 4 - 159 Logic Puzzles
Shikaku Mixed Grids - Medium - Volume 3 - 159 Logic Puzzles
Shikaku Mixed Grids - Easy to Hard - Volume 1 - 156 Puzzles
Mega Sudoku 16x16 Deluxe - Easy to Extreme - Volume 35 - 468 Puzzles
Mega Sudoku 16x16 - Medium - Volume 31 - 276 Puzzles
Sudoku For Kids Mixed Grids - Easy to Extreme - Volume 3 - 145 Puzzles
Sudoku X 10x10 - Hard to Extreme - Volume 7 - 276 Puzzles
Sudoku X 9x9 Deluxe - Hard - Volume 11 - 468 Logic Puzzles
Tridoku - Extreme - Volume 5 - 276 Puzzles
Futoshiki Mixed Grids Deluxe - Easy to Hard - Volume 6 - 474 Puzzles
Jigsaw Sudoku 12x12 - Medium - Volume 17 - 276 Puzzles
Sudoku For Kids Mixed Grids - Medium - Volume 19 - 145 Logic Puzzles
Samurai Sudoku - Medium - Volume 3 - 159 Puzzles
CalcuDoku Mixed Grids Deluxe - Easy to Hard - Volume 6 - 468 Puzzles
Classic Sudoku For Kids 9x9 - Easy - Volume 13 - 145 Logic Puzzles
Mega Sudoku 16x16 Deluxe - Extreme - Volume 56 - 468 Logic Puzzles
Killer Sudoku 9x9 - Hard - Volume 4 - 270 Puzzles
Hoshi Sudoku - Easy to Extreme - Volume 1 - 276 Puzzles
