Hidoku Mixed Grids - Hard - Volume 4 - 156 Logic Puzzles
Hidoku Mixed Grids - Easy - Volume 2 - 156 Logic Puzzles
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 - Medium - Volume 3 - 156 Logic Puzzles
Classic Sudoku For Kids 9x9 - Easy to Extreme - Volume 8 - 145 Logic Puzzles
Consecutive Sudoku - Medium - Volume 3 - 276 Logic Puzzles
Binary Puzzles Mixed Grids - Easy - Volume 2 - 276 Puzzles
Sudoku 15x15 - Easy to Extreme - Volume 22 - 276 Puzzles
CalcuDoku Mixed Grids - Hard - Volume 4 - 276 Puzzles
Binary Puzzles 14x14 Large Print - Easy to Hard - Volume 11 - 276 Puzzles
Large Sudoku 12x12 - Medium - Volume 17 - 276 Puzzles
Sudoku X 9x9 Deluxe - Hard - Volume 11 - 468 Logic Puzzles
Classic Sudoku 9x9 - Medium to Hard - Volume 63 - 276 Logic Puzzles
Sudoku 8x8 Deluxe - Easy to Hard - Volume 52 - 468 Puzzles
Consecutive Sudoku - Easy to Extreme - Volume 1 - 276 Logic Puzzles
Masyu Mixed Grids Deluxe - Easy to Hard - Volume 6 - 474 Logic Puzzles
Mega Sudoku 16x16 Deluxe - Easy to Extreme - Volume 35 - 468 Puzzles
Killer Sudoku Mixed Grids - Medium - Volume 21 - 276 Puzzles
Futoshiki 9x9 - Medium - Volume 9 - 276 Puzzles
