Hidoku Mixed Grids - Easy to Hard - Volume 1 - 156 Puzzles
Hidoku Mixed Grids Deluxe - Easy to Hard - Volume 5 - 255 Logic Puzzles
Hidoku Mixed Grids - Easy - Volume 2 - 156 Logic Puzzles
Hidoku Mixed Grids - Medium - Volume 3 - 156 Logic Puzzles
Hidoku Mixed Grids - Hard - Volume 4 - 156 Logic Puzzles
Classic Sudoku 9x9 - Hard - Volume 4 - 276 Puzzles
Binary Puzzles 14x14 - Medium - Volume 9 - 276 Puzzles
Argyle Sudoku - Easy to Extreme - Volume 1 - 276 Puzzles
Non-Consecutive Sudoku Deluxe - Easy to Extreme - Volume 7 - 468 Logic Puzzles
Daily Mega Sudoku 16x16 Puzzle Calendar 2017
Large Sudoku 12x12 - Medium - Volume 17 - 276 Puzzles
Killer Sudoku For Kids 6x6 - Easy to Hard - Volume 1 - 145 Puzzles
Mega Sudoku 16x16 - Extreme - Volume 33 - 276 Puzzles
Large Sudoku 12x12 - Easy - Volume 16 - 276 Puzzles
Daily CalcuDoku Puzzle Calendar 2015
Large Sudoku 12x12 - Hard - Volume 18 - 276 Puzzles
Minesweeper Mixed Grids Deluxe - Easy to Hard - Volume 5 - 255 Logic Puzzles
Killer Sudoku 9x9 - Hard - Volume 4 - 270 Puzzles
Sudoku X 10x10 - Hard to Extreme - Volume 7 - 276 Puzzles
Mini Sudoku 6x6 - Hard - Volume 46 - 276 Puzzles
