Binary Puzzle Book for Adults: 156 Binario Binairo Takuzu Math Logic Puzzles Easy to Hard | Buy Online in South Africa | takealot.com
Medium Logic Puzzles & Brain Games for Adults: 500 Puzzles & 12 Puzzle Types (Sudoku, Fillomino, Battleships, Calcudoku, Binary Puzzle, Slitherlink, . (Challenging Fun Brain Teasers Series) by Alzamili, Dr. Khalid: New (