Publisher's Synopsis
- 250 best puzzles + surprise in 250 Classic Killer Sudoku puzzle - very hard levels (need to download and print) - all riddles have only one verified solution - 2 puzzles on 1 page, very practical and convenient - a lot of free space for the progress of your thoughts - good mind support in excellent form - large font - develops memory, logical thinking, helps to focus - creative possibilities are expanding Ideal gift for all fans of puzzles. An excellent book for free time and learning of the mind. I hope you enjoy the book. I would be very grateful if you write a review. Best regards, Andrii Pitenko
