- Puzzles for Brain - Numbricks 200 Medium to Hard Puzzles 12x12 Vol. 22
- Killer Sudoku Puzzles - 200 Hard to Expert 9x9 Vol. 17
- Puzzles for Brain - Jigsaw Sudoku 200 Easy to Medium Puzzles 10x10 Vol. 15
- Mega Sudoku Puzzles -200 Easy to Expert 16x16 Vol. 5
- Puzzles for Brain Calcudoku - 200 Medium 8x8 Vol. 19