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 to Hard - Volume 1 - 156 Puzzles
Shikaku Mixed Grids - Easy - Volume 2 - 159 Logic Puzzles
Shikaku Mixed Grids - Medium - Volume 3 - 159 Logic Puzzles
Killer Sudoku 12x12 - Easy to Hard - Volume 13 - 276 Puzzles
Futoshiki 9x9 Deluxe - Hard - Volume 13 - 468 Logic Puzzles
Binary Puzzles 14x14 Large Print - Easy to Hard - Volume 11 - 276 Puzzles
Hoshi Sudoku - Easy to Extreme - Volume 1 - 276 Puzzles
Sudoku 15x15 Large Print - Easy to Extreme - Volume 27 - 276 Puzzles
Nurikabe Mixed Grids Deluxe - Easy to Hard - Volume 12 - 474 Logic Puzzles
Mega Sudoku 16x16 - Easy to Extreme - Volume 29 - 276 Puzzles
Huge Hashi Mixed Grids - Volume 1 - 159 Puzzles
Mini Sudoku For Kids 6x6 - Easy to Hard - Volume 1 - 145 Puzzles
Sudoku X 12x12 - Easy to Extreme - Volume 3 - 276 Puzzles
Killer Sudoku 9x9 - Medium - Volume 3 - 270 Puzzles
Killer Sudoku Mixed Grids - Easy to Hard - Volume 19 - 276 Puzzles
Classic Sudoku For Kids 9x9 - Easy to Extreme - Volume 8 - 145 Logic Puzzles
Large Sudoku 12x12 Deluxe - Easy to Extreme - Volume 21 - 468 Puzzles
Large Sudoku 12x12 - Easy to Extreme - Volume 15 - 276 Puzzles
