Download or read book 400 Calcudoku Hard Puzzles 9 X 9 Bonus 250 Classic Sudoku Sudoku Hard Puzzles and Classic Sudoku 9x9 Very Hard Levels written by Basford Holmes and published by Calcudoku Classic Sudoku. This book was released on 2018-09-27 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare your mind for an exciting excursion to the world of numbers. Way. This is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. - 400 amusing classic puzzles + bonus in classic Sudoku 9x9 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Calcudoku Hard Very Hard Puzzles 9 X 9 Bonus 250 Classic Sudoku Sudoku Hard Very Hard Puzzles and Classic Sudoku 9 X 9 Very Hard Levels written by Basford Holmes and published by Calcudoku Classic Sudoku. This book was released on 2018-09-30 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare your mind for an exciting excursion to the world of numbers. Top Sudoku calcudoku. Prepare a pencil and mood! This is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. - 400 amusing classic puzzles + bonus in classic Sudoku 9x9 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in the excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Calcudoku Puzzles 9 X 9 Bonus 250 Classic Sudoku Sudoku Easy Medium Hard Very Hard Puzzles and Classic Sudoku 9x9 Very Hard Levels written by Basford Holmes and published by Calcudoku Classic Sudoku. This book was released on 2018-09-26 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare your mind for an exciting excursion to the world of numbers. This is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. - 400 amusing classic puzzles + bonus in classic Sudoku 9x9 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! The puzzles will lead you from the light level to the super heavy. - 400 unique Sudoku puzzles - 4 difficulty levels (all difficulty levels) - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Calcudoku Very Hard Puzzles 9 X 9 Bonus 250 Classic Sudoku Sudoku Very Hard Puzzles and Classic Sudoku 9 X 9 Very Hard Levels written by Basford Holmes and published by Calcudoku Classic Sudoku. This book was released on 2018-09-27 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare your mind for an exciting excursion to the world of numbers. Top of Calcudoku. This is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. - 400 amusing classic puzzles + bonus in classic Sudoku 9x9 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Calcudoku Medium Hard Puzzles 9 X 9 Bonus 250 Classic Sudoku Sudoku Medium Hard Puzzles and Classic Sudoku 9x9 Very Hard Levels written by Basford Holmes and published by Calcudoku Classic Sudoku. This book was released on 2018-09-30 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare your mind for an exciting excursion to the world of numbers. Prepare a pencil and mood! This is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. - 400 amusing classic puzzles + bonus in classic Sudoku 9x9 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in the excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Calcudoku Easy Puzzles 9 X 9 Bonus 250 Classic Sudoku Sudoku Easy Puzzles and Classic Sudoku 9x9 Very Hard Levels written by Basford Holmes and published by Calcudoku Classic Sudoku. This book was released on 2018-09-27 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare your mind for an exciting excursion to the world of numbers. The beginning of the way. This is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. - 400 amusing classic puzzles + bonus in classic Sudoku 9x9 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Calcudoku Medium Puzzles 9 X 9 Bonus 250 Classic Sudoku Sudoku Medium Puzzles and Classic Sudoku 9x9 Very Hard Levels written by Basford Holmes and published by Calcudoku Classic Sudoku. This book was released on 2018-09-27 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare your mind for an exciting excursion to the world of numbers. Way. This is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. - 400 amusing classic puzzles + bonus in classic Sudoku 9x9 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Calcudoku Easy Medium Puzzles 9 X 9 Bonus 250 Classic Sudoku Sudoku Easy Medium Puzzles and Classic Sudoku 9x9 Very Hard Levels written by Basford Holmes and published by Calcudoku Classic Sudoku. This book was released on 2018-09-30 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare your mind for an exciting excursion to the world of numbers. This is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. - 400 amusing classic puzzles + bonus in classic Sudoku 9x9 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in the excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Classic Sudoku 9 X 9 Hard Very Hard Levels Bonus 250 Labyrinth Puzzles written by Basford Holmes and published by Createspace Independent Publishing Platform. This book was released on 2018-09-10 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: - 400 amusing classic puzzles + bonus in 250 labyrinths 21 x 21 very difficult levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all riddles have only one proven solution - good mind support in excellent form - develops memory, logical thinking, helps to focus - creative possibilities expand. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book Edition Sudoku 400 Collection Puzzle written by Basford Holmes and published by . This book was released on 2018-12-04 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good fitness for the brain. 100 puzzles Sudoku Calcudoku 9x9 - Hard Levels. 100 puzzles Kakuro - 9x9 + 10x10 + 11x11 and 12x12 puzzles. 100 puzzles Jigsaw Killer Sudoku - Hard levels. 100 puzzles Tridoku Sudoku 9x9 - 25 Hard levels. - unique puzzles. Calcudoku - this is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. Kakuro is a logical numerical puzzle, the mathematical equivalent of a crossword puzzle. In the cells it is necessary to place the numbers from 1 to 9, there are inactive cells (marked in black). In cells with given numerical values, the upper right value indicates the sum of the digits in the row, and the value from the lower left position is equal to the sum of the digits of the column below the cell. For example, the number 6 can be represented as a sum of 2 and 4 or 1 and 5; the same numbers (3 and 3) are not allowed. Jigsaw killer sudoku - This Sudoku leads step by step to the top of the skill. It is necessary to fill empty cells with numbers from 1 to 9, each of the digits should appear only once in each row and column of the 9x9 square. The puzzle contains areas in an arbitrary form. The sum of all the numbers in the cage must correspond to the number printed in the corner. They can be called figurative or geometric, they also have names (Killer Jigsaw Sudoku, Killer Geometry Sudoku, Killer Irregular Sudoku, Killer Kikagaku Nanpure). Tridoku. The puzzle consists of nine large triangles. Each of them contains nine small triangles. Figures from 1 to 9 should be placed in the cells of each large triangle. The field contains additional lines, the cells of which must also contain non-repeating numbers. Two adjoining triangular cells should not contain the same numbers (even if the cells touch each other with only one point). + 250 sudokus difficult level that can be downloaded and printed. + 250 maze puzzles that can be downloaded and printed. - only 1 verified solution. - all answers are at the end of the book. - exclusive puzzles. - a link to the surprise is at the end of the book. An excellent book for free time and mind exploration. I hope you enjoy the book. Best regards, Basford Holmes

Download or read book 400 Jigsaw Puzzles 9 X 9 Very Hard Bonus 250 Labyrinth 20 X 20 Sudoku Very Hard Levels and Maze Puzzles Very Hard Level written by Basford Holmes and published by Jigsaw Classic Sudoku. This book was released on 2018-09-22 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get ready for these super heavy puzzles. In this sudoku it is necessary to fill empty cells with numbers from 1 to 9, each of the digits should appear only once in each row and column of the square of 9x9. The puzzle contains areas in an arbitrary form. They can be called figurative or geometric, they also have names (Jigsaw Sudoku, Geometry Sudoku, Irregular Sudoku, Kikagaku Nanpure). - 400 high-quality classic puzzles + bonus in 250 labyrinths 20 x 20 very hard levels (bonus puzzles need to be downloaded and printed) The way to mastery of Sudoku! - 400 unique Sudoku puzzles - fitness for your brain - printed on high-quality, clean white paper - Original Sudoku for the power of your brain - just tested puzzles - answers at the end of the book - all the riddles have only one proven solution - good mind support in great shape - develops memory, logical thinking, helps to focus - creative opportunities are expanding. Ideal gift for all fans of puzzles. A great book for free time and studying the mind. I hope you enjoy the book. I would really appreciate it if you write a review. Best regards, Basford Holmes

Download or read book 400 Variete Very Hard Levels Calcudoku Killer Jigsaw Numbricks Chain written by Basford Holmes and published by Independently Published. This book was released on 2018-10-26 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sit back and plunge into the world of numbers.- 100 puzzles Sudoku Calcudoku 9x9 Very hard level.- 100 puzzles Killer Jigsaw Sudoku Very hard level.- 100 Numbricks 12x12 puzzles Very hard level.- 100 puzzles Chain Sudoku 9x9 Very hard level.- 400 unique puzzles+ 250 sudoku difficult level that can be downloaded and printed.+ 250 maze puzzles that can be downloaded and printed.- only 1 verified solution- all answers are at the end of the book- exclusive puzzles- a link to the surprise is at the end of the bookA great book for free time and studying the mind.I hope you enjoy the book.Best regards, Basford Holme

Download or read book Book Logic Sudoku 400 Collection Puzzle written by Basford Holmes and published by . This book was released on 2018-12-05 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Best fitness for the brain. 100 puzzles Sudoku Calcudoku 9x9 - Very hard Levels. 100 puzzles Kakuro - 9x9 + 10x10 + 11x11 and 12x12 puzzles. 100 puzzles Jigsaw Killer Sudoku - Very hard levels. 100 puzzles Tridoku Sudoku 9x9 - 25 Very hard levels. - unique puzzles. Calcudoku - this is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. The puzzle can be called Square Wisdom, Kendoku. Kakuro is a logical numerical puzzle, the mathematical equivalent of a crossword puzzle. In the cells it is necessary to place the numbers from 1 to 9, there are inactive cells (marked in black). In cells with given numerical values, the upper right value indicates the sum of the digits in the row, and the value from the lower left position is equal to the sum of the digits of the column below the cell. For example, the number 6 can be represented as a sum of 2 and 4 or 1 and 5; the same numbers (3 and 3) are not allowed. Jigsaw killer sudoku - This Sudoku leads step by step to the top of the skill. It is necessary to fill empty cells with numbers from 1 to 9, each of the digits should appear only once in each row and column of the 9x9 square. The puzzle contains areas in an arbitrary form. The sum of all the numbers in the cage must correspond to the number printed in the corner. They can be called figurative or geometric, they also have names (Killer Jigsaw Sudoku, Killer Geometry Sudoku, Killer Irregular Sudoku, Killer Kikagaku Nanpure). Tridoku. The puzzle consists of nine large triangles. Each of them contains nine small triangles. Figures from 1 to 9 should be placed in the cells of each large triangle. The field contains additional lines, the cells of which must also contain non-repeating numbers. Two adjoining triangular cells should not contain the same numbers (even if the cells touch each other with only one point). + 250 sudoku difficult level that can be downloaded and printed. + 250 maze puzzles that can be downloaded and printed. - only 1 verified solution. - all answers are at the end of the book. - exclusive puzzles. - a link to the surprise is at the end of the book. An excellent book for free time and mind exploration. I hope you enjoy the book. Best regards, Basford Holmes

Download or read book 200 Strong Calcudoku and 200 Jigsaw Sudoku Hard Levels written by Basford Holmes and published by Independently Published. This book was released on 2018-12-17 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amazing fitness and energy for the brain.Calcudoku - this is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. All signs of mathematical signs are hidden. The puzzle can be called Square Wisdom, Kendoku.Jigsaw Even - Odd Puzzles X Diagonal - The puzzle may contain regions of arbitrary shape; such sudoku called geometric or curly ("Jigsaw Sudoku," "Geometry Sudoku," "Irregular Sudoku," "Kikagaku Nanpure"). The puzzle contains information about the parity or odd numbers in the cells. In the cells with gray squares are even numbers. In this puzzle, the main diagonal squares contain numbers from 1 to 9.200 maximally challenging Calcudoku sudoku puzzle hard levels.200 Jigsaw Odd Puzzles "X" Diagonal sudoku puzzle hard levels.- unique puzzles+ 250 sudokus difficult level that can be downloaded and printed.+ 250 maze puzzles that can be downloaded and printed.- only 1 verified solution.- all answers are at the end of the book.- exclusive puzzles.- a link to the surprise is at the end of the book.An excellent book for free time and mind exploration.I hope you enjoy the book.Best regards, Basford Holmes

Download or read book 200 Strong Calcudoku and 200 Jigsaw Sudoku Hard and Very Hard Levels written by Basford Holmes and published by Independently Published. This book was released on 2018-12-24 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good fitness and energy for the brain.Calcudoku - this is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. All signs of mathematical signs are hidden. The puzzle can be called Square Wisdom, Kendoku.Jigsaw Even - Odd Puzzles X Diagonal - The puzzle may contain regions of arbitrary shape; such sudoku called geometric or curly ("Jigsaw Sudoku," "Geometry Sudoku," "Irregular Sudoku," "Kikagaku Nanpure"). The puzzle contains information about the parity or odd numbers in the cells. In the cells with gray squares are even numbers. In this puzzle, the main diagonal squares contain numbers from 1 to 9.100 maximally challenging Calcudoku sudoku puzzle hard levels.100 maximally challenging Calcudoku sudoku puzzle very hard levels.100 Jigsaw Even-Odd Puzzles "X" Diagonal sudoku puzzle hard levels.100 Jigsaw Even-Odd Puzzles "X" Diagonal sudoku puzzle very hard levels.- unique puzzles+ 250 sudokus difficult level that can be downloaded and printed.+ 250 maze puzzles that can be downloaded and printed.- only 1 verified solution.- all answers are at the end of the book.- exclusive puzzles.- a link to the surprise is at the end of the book.An excellent book for free time and mind exploration.I hope you enjoy the book.Best regards, Basford Holmes

Download or read book 200 Strong Calcudoku and 200 Jigsaw Sudoku Very Hard Levels written by Basford Holmes and published by Independently Published. This book was released on 2018-12-19 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amazing fitness and energy for the brain.Calcudoku - this is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. All signs of mathematical signs are hidden. The puzzle can be called Square Wisdom, Kendoku.Jigsaw Even - Odd Puzzles X Diagonal - The puzzle may contain regions of arbitrary shape; such sudoku called geometric or curly ("Jigsaw Sudoku," "Geometry Sudoku," "Irregular Sudoku," "Kikagaku Nanpure"). The puzzle contains information about the parity or odd numbers in the cells. In the cells with gray squares are even numbers. In this puzzle, the main diagonal squares contain numbers from 1 to 9.200 maximally challenging Calcudoku sudoku puzzle very hard levels.200 Jigsaw Even-Odd Puzzles "X" Diagonal sudoku puzzle very hard levels.- unique puzzles.+ 250 sudokus difficult level that can be downloaded and printed.+ 250 maze puzzles that can be downloaded and printed.- only 1 verified solution.- all answers are at the end of the book.- exclusive puzzles.- a link to the surprise is at the end of the book.An excellent book for free time and mind exploration.I hope you enjoy the book.Best regards, Basford Holmes

Download or read book 200 Calcudoku Strong Complicated Version and 200 Jigsaw Even Odd Puzzles X Diagonal written by Basford Holmes and published by Independently Published. This book was released on 2018-12-13 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decent fitness and energy for the brain. Calcudoku - this is a mathematical and logical puzzle. It is necessary to fill the grid with numbers so that in each line and in each column they are not repeated. The number in the corner of each selected block is the result of an arithmetic operation on the digits in this block. The numbers inside the block can be repeated. All signs of mathematical signs are hidden. The puzzle can be called Square Wisdom, Kendoku. Jigsaw Even - Odd Puzzles X Diagonal - The puzzle may contain regions of arbitrary shape; such sudoku called geometric or curly ("Jigsaw Sudoku", "Geometry Sudoku", "Irregular Sudoku", "Kikagaku Nanpure"). The puzzle contains information about the parity or odd numbers in the cells. In the cells with gray squares are even numbers. In this puzzle, the main diagonals of the square contain numbers from 1 to 9. 50 maximally challenging Calcudoku sudoku puzzle easy levels. 50 maximally challenging Calcudoku sudoku puzzle medium levels. 50 maximally challenging Calcudoku sudoku puzzle hard levels. 50 maximally challenging Calcudoku sudoku puzzle very hard levels. 50 Jigsaw Odd Puzzles "X" Diagonal sudoku puzzle easy levels. 50 Jigsaw Odd Puzzles "X" Diagonal sudoku puzzle medium levels. 50 Jigsaw Odd Puzzles "X" Diagonal sudoku puzzle hard levels. 50 Jigsaw Odd Puzzles "X" Diagonal sudoku puzzle very hard levels. - unique puzzles. + 250 sudokus difficult level that can be downloaded and printed. + 250 maze puzzles that can be downloaded and printed. - only 1 verified solution. - all answers are at the end of the book. - exclusive puzzles. - a link to the surprise is at the end of the book. An excellent book for free time and mind exploration. I hope you enjoy the book. Best regards, Basford Holmes