Game Calendars
2021 Activity Book for Adults: 365 Hard Variety Puzzles for Every Day of the Year : 12 Puzzle Types (Sudoku, Futoshiki, Battleships, Calcudoku, Binary Puzzle, Slitherlink, Killer Sudoku, Masyu, Jigsaw Sudoku, Minesweeper, Suguru, and Numbrix)
Jigsaw Sudoku, Killer Sudoku, Battleships, Binary Puzzle / Binairo
- Difficulty
- Hard
- Puzzle count
- 365 puzzles