Activity Book : Logic Puzzles for Adults & Seniors: 500 Hard Puzzles (Sudoku - Fillomino - Straights - Futoshiki - Binary - Slitherlink - Sudoku X - ... 29 (Brain Games for Adults Series)

ACTIVITY BOOK FOR ADULTS: 100+ Large Print Puzzles

Adult Activity Book: 500 Easy Logic Puzzles (Sudoku, Tridoku, Masyu, Hakyuu, Battleships, Fillomino, Suguru, Creek, Numbrix, Binary, Minesweeper and Futoshiki): 24 (Logic & Brain Teasers Series)

Tricky Logic Puzzles for Adults: 130+ Difficult Puzzles to Challenge Your Brain

Adult Activity Book: 500 Hard Logic Puzzles (Sudoku, Tridoku, Masyu, Hakyuu, Battleships, Fillomino, Suguru, Creek, Numbrix, Binary, Minesweeper and Futoshiki): 26 (Logic & Brain Teasers Series)