511 books • 54 series
Master of Puzzles - Anti Diagonal Sudoku 400 Hard to Master Puzzles vol.7 (Anti Diagonal Sudoku, #7)
Master of Puzzles - Anti Diagonal Sudoku 200 Medium Puzzles vol.2 (Anti Diagonal Sudoku, #2)
Master of Puzzles - Anti Diagonal Sudoku 400 Easy to Master Puzzles vol.8 (Anti Diagonal Sudoku, #8)
Master of Puzzles - Anti Diagonal Sudoku 200 Easy Puzzles vol.1 (Anti Diagonal Sudoku, #1)
Master of Puzzles - Anti Diagonal Sudoku 400 Easy to Medium Puzzles vol.5 (Anti Diagonal Sudoku, #5)
Master of Puzzles - Sudoku Tridoku 200 Hard to Master Puzzles Vol.6 (Sudoku Tridoku, #6)
Master of Puzzles - Sudoku Tridoku 400 Hard to Master Puzzles Vol.8 (Sudoku Tridoku, #8)