Argyle Sudoku - Easy to Extreme - Volume 1 - 276 Puzzles
Killer Sudoku Mixed Grids - Easy to Hard - Volume 19 - 276 Puzzles
Sudoku Travel Pocket Size Book 5 - 120 Extreme Logic Puzzles For On-The-Go Holiday Fun
Samurai Sudoku - Easy - Volume 2 - 159 Puzzles
CalcuDoku 9x9 - Medium - Volume 9 - 276 Puzzles
Binary Puzzles 14x14 - Hard - Volume 10 - 276 Puzzles
Jigsaw Sudoku 10x10 - Hard - Volume 11 - 276 Puzzles
Heyawake Mixed Grids Deluxe - Easy to Hard - Volume 6 - 474 Logic Puzzles
Samurai Sudoku Deluxe - Hard - Volume 8 - 255 Logic Puzzles
Nurikabe Mixed Grids Deluxe - Easy to Hard - Volume 12 - 474 Logic Puzzles
CalcuDoku Mixed Grids - Easy - Volume 2 - 276 Puzzles
Mega Sudoku 16x16 - Hard - Volume 32 - 276 Puzzles
Mega Sudoku 16x16 - Easy to Extreme - Volume 29 - 276 Puzzles
Nurikabe Mixed Grids - Medium - Volume 3 - 276 Logic Puzzles
Hyper Sudoku 9x9 - Easy to Extreme - Volume 1 - 276 Puzzles
Jigsaw Sudoku 12x12 - Medium - Volume 17 - 276 Puzzles
Sudoku For Kids 8x8 - Easy - Volume 4 - 145 Logic Puzzles
Futoshiki 9x9 - Hard - Volume 10 - 276 Puzzles
CalcuDoku Mixed Grids Deluxe - Easy to Hard - Volume 6 - 468 Puzzles
Numbricks Mixed Grids Deluxe - Easy to Hard - Volume 6 - 474 Puzzles
