250 excellent puzzles at the level of the gold medalist of the Sudoku Championship. Very easy to read. Each puzzle has only 1 unique solution. Balanced location of riddles. Enough space for your thoughts and decisions. Very convenient and practical. Good brain support in shape. Expands creative thinking. Wide inner edges allow recording of solution options. Ideal gift for all fans of puzzles.Sudoku 9x9, separated by smaller rectangles of 3x3 cells. It is necessary to fill empty cells with numbers from 1 to 9, each of the digits should appear only once in each line of the 9x9 square, 9x9 column and 3x3 rectangle. On the verticals and horizontals to the classical sudoku towers are added, puzzles are built one into the other. In total, 5 Sudoku are obtained, taking into account the central one.A great book for relaxing in your spare time. There are 148 pages. The format is 6 '' x 9 ''. I hope you enjoy my book. Sudoku will provide you with relaxation, color your leisure, turn your free time into relaxation, give a vacation from the daily for your mind, add zest, develop memory, develop logical thinking and concentration of attention.I would also be very grateful if you could write a review.Thank you.Best regards,Andrii Pitenko