2021 Activity Book for Adults: 365 Very Hard Variety Puzzles for Every Day of the Year : 12 Puzzle Types (Sudoku, Futoshiki, Battleships, Calcudoku, … and Numbrix) (Mixed Puzzles Books Series)

✓ Great gift for family, friends, or work colleagues
This Activity Book is packed with the following features:
① 365 Very Hard Logic puzzles for every day of the year
② Each puzzle is guaranteed to have only one solution.
③ Answers to every puzzle are provided.
④ 12 Puzzle Types (Sudoku, Futoshiki, Battleships, Calcudoku, Binary Puzzle, Slitherlink, Killer Sudoku, Masyu, Jigsaw Sudoku, Minesweeper, Suguru, and Numbrix)
Playing Logic Puzzles on a daily basis helps to keep an active mind and players often see improvements in their overall concentration.
Includes free bonus puzzles you can download. 
★★★★★ 2021 Adult Puzzle Book  offers hours of entertainment for adults of all ages, from young adults to seniors ★★★★★
♥ We hope this will be an entertaining and uplifting mental workout, enjoy 2021 Adult Puzzle Book ♥