Hard Logic Puzzles & Brain Games for Adults: 500 Puzzles & 12 Puzzle Types (Sudoku, Fillomino, Battleships, Calcudoku, Binary Puzzle, Slitherlink, ... 3 (Challenging Fun Brain Teasers Series) Paperback – 9 May 2020

Great puzzle book

Good quality and excellent service

I like puzzles that are challenging, but that can be solved logically. I was disappointed by the quality of some of the puzzles in this book. The difficulty was quite variable. Some were very easy (too easy for a book of hard puzzles) - see for example the Minesweeper puzzle in the image. The Calcudoku and Suguru were also much easier than the other puzzles. Some puzzles did not have a unique solution. At the other difficulty extreme, some puzzles could only be solved using brute force.On the plus side, the book is packed full of puzzles, which made it good value for money overall. It was also great to be able to experience a variety of puzzles. The Battleships puzzles were suitably challenging, and the Slitherlink and Maysu were also enjoyable.The book gave a contact email address for the author, but I received no reply in over a month.

Overall it's a good book full of different puzzles for a great price

Great book with a good variety of challenging puzzles.