Hidoku Mixed Grids - Hard - Volume 4 - 156 Logic Puzzles
Hidoku Mixed Grids - Medium - Volume 3 - 156 Logic Puzzles
Hidoku Mixed Grids - Easy to Hard - Volume 1 - 156 Puzzles
Hidoku Mixed Grids - Easy - Volume 2 - 156 Logic Puzzles
Hidoku Mixed Grids Deluxe - Easy to Hard - Volume 5 - 255 Logic Puzzles
Heyawake Mixed Grids Deluxe - Easy to Hard - Volume 12 - 474 Logic Puzzles
Numbricks Mixed Grids Large Print - Medium - Volume 9 - 276 Logic Puzzles
Killer Sudoku 12x12 - Easy to Hard - Volume 13 - 276 Puzzles
Anti-King Sudoku 16x16 - Easy to Extreme - Volume 5 - 276 Puzzles
Sudoku Mixed Grids - Hard - Volume 39 - 282 Puzzles
Shikaku Mixed Grids - Medium - Volume 3 - 159 Logic Puzzles
Numbricks Mixed Grids - Medium - Volume 3 - 276 Puzzles
Heyawake Mixed Grids - Easy - Volume 8 - 276 Logic Puzzles
CalcuDoku 9x9 Deluxe - Hard - Volume 13 - 468 Logic Puzzles
Anti-King Sudoku 10x10 - Easy to Extreme - Volume 2 - 276 Puzzles
Sudoku 15x15 - Easy - Volume 23 - 276 Puzzles
Mini Sudoku For Kids 6x6 - Medium - Volume 10 - 145 Logic Puzzles
CalcuDoku Mixed Grids Deluxe - Easy to Hard - Volume 6 - 468 Puzzles
Classic Sudoku 9x9 - Extreme - Volume 5 - 276 Puzzles
Heyawake Mixed Grids - Easy - Volume 2 - 276 Logic Puzzles
