Shikaku Mixed Grids - Easy to Hard - Volume 1 - 156 Puzzles
Shikaku Mixed Grids - Easy - Volume 2 - 159 Logic 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 - Medium - Volume 3 - 159 Logic Puzzles
Sudoku For Kids 8x8 - Easy - Volume 4 - 145 Logic Puzzles
CalcuDoku 9x9 - Easy to Hard - Volume 7 - 276 Puzzles
Sudoku For Kids Mixed Grids - Easy - Volume 18 - 145 Logic Puzzles
Flower Sudoku - Medium - Volume 3 - 276 Logic Puzzles
Mega Sudoku 16x16 - Easy - Volume 30 - 276 Puzzles
Hoshi Sudoku - Medium - Volume 3 - 276 Puzzles
Consecutive Sudoku - Easy to Extreme - Volume 1 - 276 Logic Puzzles
Anti-King Sudoku 15x15 - Easy to Extreme - Volume 4 - 276 Puzzles
Mini Sudoku For Kids 6x6 - Medium - Volume 10 - 145 Logic Puzzles
Killer Sudoku 9x9 Large Print - Medium - Volume 26 - 270 Logic Puzzles
Futoshiki Mixed Grids - Medium - Volume 3 - 276 Puzzles
Binary Puzzles 14x14 - Easy - Volume 8 - 276 Puzzles
Large Sudoku 12x12 Deluxe - Easy to Extreme - Volume 21 - 468 Puzzles
Sudoku Mixed Grids Deluxe - Extreme - Volume 61 - 476 Logic Puzzles
