2,208 books • 130 series
Calcudoku Plus Puzzle Books - 400 Easy to Master Puzzles 6x6 (Volume 2) (Calcudoku Plus Puzzle Books, #2)
Slitherlink Puzzle Books - 400 Easy to Master Puzzles 6x6 (Volume 2) (Slitherlink Puzzle Books, #2)
Futoshiki Puzzle Books - 400 Easy to Master Puzzles 6x6 (Volume 2) (Futoshiki Puzzle Books, #2)
Calcudoku Puzzle Books - 400 Easy to Master Puzzles 9x9 (Volume 5) (Calcudoku Puzzle Books, #5)
Straights Puzzle Books - 400 Easy to Master Puzzles 9x9 (Volume 5) (Straights Puzzle Books, #5)