Argyle Sudoku - Easy to Extreme - Volume 1 - 276 Puzzles
Tridoku - Extreme - Volume 5 - 276 Puzzles
Heyawake Mixed Grids - Medium - Volume 9 - 276 Logic Puzzles
Minesweeper Mixed Grids Deluxe - Easy to Hard - Volume 10 - 255 Logic Puzzles
Heyawake Mixed Grids - Hard - Volume 10 - 276 Logic Puzzles
Large Sudoku 12x12 Deluxe - Easy to Extreme - Volume 21 - 468 Puzzles
Mini Sudoku 6x6 - Easy - Volume 44 - 276 Puzzles
Girandola Sudoku - Easy to Extreme - Volume 1 - 276 Puzzles
Binary Puzzles Mixed Grids Deluxe - Easy to Hard - Volume 6 - 474 Puzzles
Star Sudoku - Medium - Volume 3 - 276 Logic Puzzles
Classic Sudoku For Kids 9x9 Deluxe - Easy to Extreme - Volume 17 - 333 Logic Puzzles
Sudoku Mixed Grids - Hard - Volume 39 - 282 Puzzles
Futoshiki Mixed Grids - Easy to Hard - Volume 1 - 276 Puzzles
Kakuro Mixed Grids Large Print - Volume 5 - 270 Logic Puzzles
Jigsaw Sudoku for Kids 8x8 - Easy to Hard - Volume 2 - 145 Puzzles
Classic Sudoku For Kids 9x9 - Medium - Volume 14 - 145 Logic Puzzles
Binary Puzzles 14x14 Deluxe - Easy to Hard - Volume 12 - 468 Puzzles
Sudoku For Kids 8x8 - Easy to Hard - Volume 2 - 145 Puzzles
Heyawake Mixed Grids Large Print - Easy to Hard - Volume 11 - 276 Logic Puzzles
Classic Sudoku 9x9 - 17 Clues - Volume 1 - 276 Puzzles
