Böcker av Andrii Pitenko

250 excellent puzzles. Levels go on increasing. You can start with a bronze medalist, this is the first 80 puzzles. You can go to the champion, the gold prize - 90 extreme Sudoku. Silver puzzles are in the middle of the book. All riddles have only 1 solution. 2 puzzles per page. Enough space for your thoughts and decisions. Very convenient and practical. Good brain support in shape. Expands creative thinking. Wide internal edges allow you to record solutions. Ideal gift for all fans of puzzles.A logical puzzle. It is a rectangular grid, in some cells of which there are numbers. It is required to fill empty cells in such a way that all numbers are connected in series, horizontally or vertically. Moving diagonally is not allowed.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 Pitenk

250 excellent puzzles. Levels go on increasing. You can start with a bronze medalist, this is the first 80 puzzles. You can go to the champion, the gold prize - 90 extreme Sudoku. Silver puzzles are in the middle of the book. All riddles have only 1 solution. 2 puzzles per page. Enough space for your thoughts and decisions. Very convenient and practical. Good brain support in shape. Expands creative thinking. Wide internal edges allow you to record solutions. Ideal gift for all fans of puzzles.Sudoku 9x9, separated by smaller squares of 3x3 cells. The entire playing field consists of 81 cells. It is required to fill empty cells with numbers from 1 to 9, each of the digits should appear only once in each row, column and 3x3 square. The sum of all the numbers in the cage must correspond to the number printed in the corner. In Sudoku Anti- Diagonal each diagonal of the square contains no more than three different digits. In these Sudoku there is an area in the form of fireworks (Wheel of fire) with numbers from 1 to 9.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

250 good puzzles at the level of gold. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column, and 4x2 rectangle. Contains key numbers located along the sides of Sudoku. It is necessary to arrange the numbers in cells; each figure indicates the number of floors in a skyscraper. Key numbers outside the cells show how many houses can be seen in the corresponding row or column if viewed from this number. In this puzzle, the numbers from 1 to 8 do not repeat also on the two main diagonals of the large square, marked by dashed lines. No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it.Excellent purchase for fans of Sudoku.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. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk

Next to Each other sudoku puzzles with the names: "Consecutive Sudoku," "Sudoku with partitions."250 honed Sudoku puzzle. Enjoy, relax, gain your happiness when solving these sudokus.The book is made and repeatedly verified. All decisions are at the end of the book. All crossword puzzles are arranged 2 by 1 page. For convenience, a large font is used. There is enough room for your thoughts, records, and solutions. This Sudoku is as difficult as a silver medalist in his favorite sport. The book will train, support, develop and entertain your brain. I wish you a pleasant time of forwarding.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. The border indicates cells in which the digits differ by 1. In this puzzle, the digits from 1 to 9 should not be repeated in the central diagonals.Excellent purchase for fans of Sudoku.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 day 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

Easy to read. Each puzzle has only 1 solution. 250 puzzles of gold level. Wide inner edges allow recording of solution options. Ideal gift for all fans of puzzles. Sudoku 6x6, separated by smaller rectangles of 3x2 cells. It is necessary to fill empty cells with numbers from 1 to 6, each of the digits should appear only once in each line of the 6 x 6 square, 6 x 6 column and 3x2 rectangle. The boundaries indicated in the Sudoku separate consecutive digits from each other. The figures differ from each other by one. In this Sudoku the same numbers can not "beat" each other with the chess steed. Excellent purchase for fans of Sudoku. 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. I would also be very grateful if you could write a review. Thank you. Best regards, Andrii Pitenko

- 250 exciting, exciting puzzles - 50 BrickWallDoku + 50 Numbriks 12 x 12 + 50 CenCenDoku 9 x 9 + 50 Fillominodoku 12 x 12 + 50 Hidoku-docu 12 x 12.- the very hard version as a champion, the golden prize of extreme Sudoku - each Sudoku has a unique solution - tasks are conveniently located - large font - develops memory, logical thinking, helps to focus - 2 puzzles on the page - wide internal fields allow you to record your decisions and thoughts- very convenient and practical - expands creative possibilities - perfect gift for all fans of puzzles. An excellent book for free time pastime and mind training. I hope you enjoy my book. I would also be very grateful if you could write a review. Thank you. Best regards, Andrii Pitenko

250 good puzzles at the level of bronze. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column and 4x2 rectangle. The sum of all the numbers in the cage must correspond to the number printed in the corner. In this puzzle, the numbers from 1 to 8 are not repeated also on the two main diagonals of the large square, marked with dashed lines.Excellent purchase for fans of Sudoku.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. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk

250 good puzzles at the level of silver. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column, and 4x2 rectangle. Cells with even numbers are marked with a gray background with odd-white color No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it.Excellent purchase for fans of Sudoku.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. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk

250 good puzzles at the level of gold. All riddles have only 1 solution. 2 puzzles per page. 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 10x10, separated by smaller rectangles of 5x2 cells. It is necessary to fill empty cells with numbers from 1 to 10, each of the digits should appear only once in each line of the 10x10 square, 10x10 column and 5x2 rectangle. In this puzzle, the digits from 1 to 10 should not be repeated in the central diagonals. Excellent purchase for fans of Sudoku. 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. I would also be very grateful if you could write a review. Thank you. Best regards, Andrii Pitenko

Killer Sudoku puzzles with the names: "Sums Sudoku," "Sums Number Place," "Samunamupure," "Kikagaku Nampure,"

250 good puzzles at the level of gold. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column and 4x2 rectangle. The sum of all the numbers in the cage must correspond to the number printed in the corner. In this Sudoku the same numbers can not "beat" each other with the chess steed.Excellent purchase for fans of Sudoku.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. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk

250 good puzzles at the level of silver. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column, and 4x2 rectangle. Contains key numbers located along the sides of Sudoku. It is necessary to arrange the numbers in cells; each figure indicates the number of floors in a skyscraper. Key numbers outside the cells show how many houses can be seen in the corresponding row or column if viewed from this number. In this puzzle, the numbers from 1 to 8 do not repeat also on the two main diagonals of the large square, marked by dashed lines. No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it.Excellent purchase for fans of Sudoku.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. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk

250 excellent puzzles at the level of silver. All riddles have only 1 solution. 2 puzzles per page. 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. The sum of all numbers in the marked section must correspond to the number written in the corner of this section. In this Sudoku the same numbers cannot "beat" each other with the chess steed.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 day 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

Puzzles 3 Numbers sudoku puzzles with the names: "Frame Sudoku," "Outside Sum Sudoku," "Sudoku - Amounts on the Side," "Sudoku with Amounts."250 excellent puzzles at the level of bronze, silver, and gold. All riddles have only 1 solution. 2 puzzles per page. 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. The numbers on the sides of the Sudoku indicate the sum of the 3 nearest digits located horizontally or vertically. In these sudokus, there is an area in the form of an octagonal star with numbers from 1 to 9.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 day 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

250 good puzzles at the level of gold. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column and 4x2 rectangle. Cells with even numbers are marked with a gray background with odd-white color No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it.Excellent purchase for fans of Sudoku.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. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk

Easy to readEach puzzle has only 1 solution250 puzzles of the gold level.Wide inner edges allow recording of solution options Ideal gift for all fans of puzzlesSudoku 6x6, separated by smaller rectangles of 3x2 cells. It is necessary to fill empty cells with numbers from 1 to 6, each of the digits should appear only once in each line of the 6 x 6 square, 6 x 6 column and 3x2 rectangle.A great book for relaxing in your spare time. In this puzzle, the digits from 1 to 6 should not be repeated in the central diagonals. There are 148 pages. The format is 6 '' x 9 ''. I hope you enjoy my book. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk

250 fascinating puzzles. Levels go on increasing. You can start with a bronze medalist, this is the first 80 puzzles. You can go to the champion, the gold prize - 90 extreme Sudoku. Silver puzzles are in the middle of the book. All riddles have only 1 solution. 2 puzzles per page. Enough space for your thoughts and decisions. Very convenient and practical. Good brain support in shape. Expands creative thinking. Wide internal edges allow you to record solutions. Ideal gift for all fans of puzzles.Sudoku 9 x 9 x 5, separated by smaller squares of 3x3 cells. The entire playing field consists of 369 cells. It is required to fill empty cells with numbers from 1 to 9, each of the digits should appear only once in each row of the 9 x 9 square, column 9 x 9 and square 3x3.) In this puzzle, the numbers from 1 to 9 are not repeated also on the two main diagonals of the large square, marked with dashed lines.An excellent book for free time and mind training.A great book for relaxing in your spare time. There are 148 pages. The format is 8,5 '' x 11 ''. 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

- 250 wonderful puzzles + surprise in 250 classic sudoku very hard (need to download and print).- levels continue to please. 50 Easy + 50 Medium + 50 Hard + 100 Very hard - 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 Pitenk

250 good puzzles at the level of gold. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column and 4x2 rectangle. No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it.Excellent purchase for fans of Sudoku.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. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk

- 250 exciting sudoku puzzle- level of the gold medalist-each Sudoku has a unique solution- tasks are conveniently located- large print- develops memory, logical thinking, helps with concentration.Sudoku is useful at any age for developing mental abilities and maintaining them in perfect condition.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. Cells with even numbers are marked with a gray background with odd-white color. In this puzzle, the digits from 1 to 9 should not be repeated in the central diagonals.Excellent purchase for fans of Sudoku.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 day 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 Pitenk

250 excellent puzzles at the level of silver. All riddles have only 1 solution. 2 puzzles per page. 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. The sum of all numbers in the marked section must correspond to the number written in the corner of this section. This Sudoku has 4 additional windows 3 x 3 in which the numbers from 1 to 9 are not repeated.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 day 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 Pitenk

250 excellent puzzles. Levels go on increasing. You can start with a bronze medalist, this is the first 80 puzzles. You can go to the champion, the gold prize - 90 extreme Sudoku. Silver puzzles are in the middle of the book. All riddles have only 1 solution. 2 puzzles per page. Enough space for your thoughts and decisions. Very convenient and practical. Good brain support in shape. Expands creative thinking. Wide internal edges allow you to record solutions. Ideal gift for all fans of puzzles.Sudoku 9x9, separated by smaller squares of 3x3 cells. The entire playing field consists of 81 cells. It is required to fill empty cells with numbers from 1 to 9, each of the digits should appear only once in each row, column and 3x3 square. The sum of all the numbers in the cage must correspond to the number printed in the corner. In this puzzle, the numbers from 1 to 9 are not repeated also on the two main diagonals of the large square, marked with dashed lines. No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it.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 Pitenk

250 good puzzles at the level of silver. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column and 4x2 rectangle. Signs > (more) and

250 best puzzles + surprise in 250 classic killers "X" Diagonal sudoku very hard levels (need to download and print)Labyrinth - the most popular game in the world - a boring, dynamic gymnastics for the mind. Your logical thinking tends to bright, creative non-standard solutions. This book is your friend in achieving mastery of Sudoku.- 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 the 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 Pitenk

- 250 exciting puzzles - 50 EASY + 50 MEDIUM + 50 HARD and 100 VERY HARD LEVELS .- each Sudoku has a unique solution - tasks are conveniently located - large font - develops memory, logical thinking, helps to focus - 2 puzzles on the page - wide internal fields allow you to record your decisions and thoughts- very convenient and practical - expands creative possibilities - perfect gift for all fans of puzzles. An excellent book for free time pastime and mind training. I hope you enjoy my book. I would also be very grateful if you could write a review. Thank you. Best regards, Andrii Pitenko

- 200 amusing Double-block puzzles + 50 rekuto 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 the 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 Pitenk

250 exciting sudoku puzzle- level of the silver medalist- each Sudoku has a unique solution- tasks are conveniently located- large print- develops memory, logical thinking, helps with concentration.Sudoku is useful at any age for developing mental abilities and maintaining them in perfect condition.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. Cells with even numbers are marked with a gray background with odd-white color. No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it. Excellent purchase for fans of Sudoku.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 day 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 Pitenk

- 250 exciting sudoku puzzle- level of the bronze medalist- each Sudoku has a unique solution- tasks are conveniently located- large print- develops memory, logical thinking, helps with concentration.Sudoku is useful at any age for developing mental abilities and maintaining them in perfect condition.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. Contains key numbers located along the sides of Sudoku. It is necessary to arrange the numbers in cells; each figure indicates the number of floors in a skyscraper. Key numbers outside the cells show how many houses can be seen in the corresponding row or column if viewed from this number. No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it.Excellent purchase for fans of Sudoku.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 day 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 Pitenk

- 250 exciting puzzles - Classic Sudoku 12 x 12"X" Diagonal Very hard + Killer Sudoku 12 x 12 "X" Diagonal Very hard + CenCenDoku 9 x 9 Very hard + Hidoku-Doku 12 x 12 Very hard + Numbricks 12 x 12.- the very hard version as a champion, the golden prize of extreme Sudoku - each Sudoku has a unique solution - tasks are conveniently located - large font - develops memory, logical thinking, helps to focus - 2 puzzles on the page - wide internal fields allow you to record your decisions and thoughts- very convenient and practical - expands creative possibilities - perfect gift for all fans of puzzles. An excellent book for free time pastime and mind training. I hope you enjoy my book. I would also be very grateful if you could write a review. Thank you. Best regards, Andrii Pitenko

250 good puzzles at the level of gold. All riddles have only 1 solution. 2 puzzles per page. 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 8x8, separated by smaller rectangles of 4x2 cells. It is necessary to fill empty cells with numbers from 1 to 8, each of the digits should appear only once in each line of the 8x8 square, 8x8 column, and 4x2 rectangle. If the numbers in neighboring cells differ by one, then there is a white dot between them. If in neighboring cells one number is twice as large as another, then the cells are separated by a black dot. Between the digits 1 and 2, there may be a point of any of these colors. No matter what figure of the playing field we take in all the cells around it (horizontally, vertically or diagonally), there should not be such a figure. This means that for any randomly taken 3x3 square, the central figure of this square occurs only once in it.Excellent purchase for fans of Sudoku.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. I would also be very grateful if you could write a review.Thank you.Best regards, Andrii Pitenk