Argyle Sudoku - Easy to Extreme - Volume 1 - 276 Puzzles
Mega Sudoku 16x16 - Easy to Extreme - Volume 29 - 276 Puzzles
Wordoku 15x15 - Easy to Extreme - Volume 4 - 276 Puzzles
Killer Sudoku 9x9 - Medium - Volume 3 - 270 Puzzles
Killer Sudoku 12x12 - Easy - Volume 14 - 276 Puzzles
Large Sudoku 12x12 - Easy to Extreme - Volume 15 - 276 Puzzles
Non-Consecutive Sudoku - Easy to Extreme - Volume 1 - 276 Logic Puzzles
Classic Sudoku For Kids 9x9 - Medium - Volume 14 - 145 Logic Puzzles
Sudoku 10x10 - Hard - Volume 11 - 276 Puzzles
Frame Sudoku - Volume 1 - 276 Logic Puzzles
Star Sudoku - Hard - Volume 4 - 276 Logic Puzzles
Tridoku - Medium - Volume 3 - 276 Puzzles
Sudoku X 16x16 - Hard to Extreme - Volume 10 - 276 Puzzles
Sudoku Mixed Grids - Easy to Extreme - Volume 36 - 282 Puzzles
Binary Puzzles 14x14 - Hard - Volume 10 - 276 Puzzles
Hyper Sudoku 16x16 - Easy to Extreme - Volume 2 - 276 Puzzles
Heyawake Mixed Grids - Medium - Volume 9 - 276 Logic Puzzles
Slitherlink Mixed Grids - Medium - Volume 3 - 276 Puzzles
Hoshi Sudoku - Easy - Volume 2 - 276 Puzzles
Classic Sudoku 9x9 - Extreme - Volume 5 - 276 Puzzles
