Publisher's Synopsis
✓ Great gift for family, friends, or work colleaguesThis Calcudoku book is packed with the following features:
① 368 Medium (6x6) 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 Four puzzles per page (8.5 x 11 inches).
Playing Calcudoku 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. ★★★★★ 2025 Calcudoku 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 Calcudoku ♥
