Champion fight -Very hard- 250 logical puzzles + bonus 250 classic Killer Sudoku: 50 LinearDoku 16x16 + 50 Labyrinth (Maze) 50 x 50 + 50 Classic Samur

- 250 amazing 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 expandingIdeal 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