Mixed / Variety
Adult Activity Book: 500 Hard Logic Puzzles (Sudoku, Tridoku, Masyu, Hakyuu, Battleships, Fillomino, Suguru, Creek, Numbrix, Binary, Minesweeper and Futoshiki)
Classic Sudoku, Battleships, Numbrix, Suguru / Number Blocks
- Difficulty
- Hard
- Puzzle count
- 500 puzzles