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Logical Amazing Puzzles Classic Sudoku 16 X 16 Large Print
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Book Synopsis Logical Amazing Puzzles - Classic Sudoku 16 X 16 - Large Print by : Andrii Pitenko
Download or read book Logical Amazing Puzzles - Classic Sudoku 16 X 16 - Large Print written by Andrii Pitenko and published by Createspace Independent Publishing Platform. This book was released on 2018-07-13 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: - 250 best puzzles + surprise in 250 killer sudoku very hard (need to download and print) - Sudoku 15x15, separated by smaller rectangles of 5x3 cells. It is necessary to fill empty cells with numbers from 1 to 15, each of the digits should appear only once in each line of the 15x15 square, 15x15 column and 5x3 rectangle - 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 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
Book Synopsis Mega Sudoku 16x16 Large Print - Extreme - Volume 60 - 276 Logic Puzzles by : Nick Snels
Download or read book Mega Sudoku 16x16 Large Print - Extreme - Volume 60 - 276 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-19 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku is a fun and addicting logic puzzle game that has taken the world by storm. This book is ideal if you are a Sudoku expert. In this book, you find the most extreme Sudoku puzzle ever. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling. Mega Sudoku 16x16 Large Print - Extreme is a collection of 276 puzzle: 216 extreme Sudoku 16x16 puzzle 60 extra logic puzzle I guarantee that every logic puzzle in this Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzle in this book will appear in any of the other English PuzzleBooks.net books. Sudoku is also known as Number Place, Nanpure, Su Doku. Quite often Sudoku is misspelled as Suduko, Soduko, Sodoku, Sudoko, Suduku or Soduku.
Book Synopsis 16 X 16 Sudoku Puzzle by : Magic Publisher
Download or read book 16 X 16 Sudoku Puzzle written by Magic Publisher and published by . This book was released on 2021-08-10 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you already like the classic 9x9 Sudoku you will love the 16x16 Sudoku: 16x16 Sudoku puzzles work in the same way as the classic version only that you have 16 numbers instead of 9! The Sudoku 16 x 16 puzzle book is the perfect gift for adults who love brain jogging and mental exercises. The puzzles in the "Medium" version are ideal for those that want a more challenging set of puzzles than the "Easy" version has to offer. Each puzzle has a unique solution that can be completed using simple logic. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling. Buy now!
Book Synopsis Large Print Sudoku 16x16 - 100 Medium Puzzles by : Oliver Hammond
Download or read book Large Print Sudoku 16x16 - 100 Medium Puzzles written by Oliver Hammond and published by . This book was released on 2021-01-28 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large Print Sudoku 16x16 - 100 Medium Puzzles Unlike classic Sudoku, Sudoku 16x16 is based on a 16x16 grid, and the object is to place the numbers 1 to 16 in the empty squares so that each row, each column, and each 4x4 box contains the same number only once. There are 100 medium hexadoku puzzles in this book. Though the level is medium, due to the large grid and the quantity of logic numbers to place, it is still a great way to challenge and exercise your brain.
Download or read book 16 X 16 Sudoku written by Expert Sudoku and published by . This book was released on 2021-05-10 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you already like the classic 9x9 Sudoku you will love the 16x16 Sudoku: 16x16 Sudoku puzzles work in the same way as the classic version only that you have 16 numbers instead of 9. The Sudoku 16 x 16 puzzle book is the perfect gift for adults who love brain jogging and mental excercises. The puzzles in the "Medium" version are ideal for those that want a more challenging set of puzzles than the "Easy" version has to offer. Each puzzle has a unique solution which can be completed using simple logic. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling.
Book Synopsis Big Book of Sudoku 16x16 by : Khalid Alzamili
Download or read book Big Book of Sudoku 16x16 written by Khalid Alzamili and published by . This book was released on 2020-03-19 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Sudoku book is packed with the following features: - 200 Medium to Very Hard Large Print Sudoku X 16x16 puzzles. - One puzzle per page (8.5 x 11 inches) and large print font for prevention of eye-strain. - Answers to every puzzle are provided. - Each puzzle is guaranteed to have only one solution. Includes free bonus puzzles you can download book (Tons of Sudoku Puzzles for Adults & Seniors) Includes free bonus puzzles you can download book (Word Search With Hidden Message: 102 Puzzles for Adults and Seniors)
Download or read book Sudoku 16 X 16 written by Ashumani and published by . This book was released on 2019-08-28 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: BIG SUDOKU 16 X 16 ✔ 16x16 Sudoku ✔ Only 1 LARGE PRINT Sudoku per page ✔ 101 Very Hard Sudoku Puzzles for Experts ✔ BIG puzzle grids ✔ Big numbers ✔ Solutions included in the next page of each puzzle (one solution per puzzle) ✔ Enjoy hours of entertainment with this hard Sudoku 16x16 Once you pick up this book, you won't be able to put it back down!
Book Synopsis Hidoku-Doku - Cool Sudoku -16x16- 50 Easy + 50 Medium + 50 Hard + 100 Very Hard by : Andrii Pitenko
Download or read book Hidoku-Doku - Cool Sudoku -16x16- 50 Easy + 50 Medium + 50 Hard + 100 Very Hard written by Andrii Pitenko and published by Createspace Independent Publishing Platform. This book was released on 2018-06-25 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: - 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 Pitenko
Book Synopsis Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Easy Puzzles Volume 6 by : Christian Demarco
Download or read book Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Easy Puzzles Volume 6 written by Christian Demarco and published by . This book was released on 2021-04-05 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to the Sudoku 16x16 Large Print Puzzle Books Series. The puzzles in the "Easy" version are ideal for Sudoku beginners and those that just want a very easy 16x16 Sudoku puzzle to solve. There are no advanced solving methods required. Each puzzle has a unique solution which can be completed using simple logic. There is nothing more frustrating than purchasing a puzzle book only to find that it is either not challenging enough or too difficult to complete. Please read the full description to determine if the difficulty level of this book matches your level of solving skills. The Sudoku Puzzle Book series is available in the following difficulty levels: Easy, Medium, Hard, Very Hard and Extreme. All difficulty levels are available in the following formats: Sudoku and Sudoku-X. In my classic 16 x 16 Sudoku puzzles, the grid is 16 cells wide and 16 cells deep. The lines of squares running horizontally are called rows, and the lines running vertically are called columns. The grid is further divided by thicker lines into sixteen 4 x 4 square boxes. The aim of the puzzle is to fill the blank cells with the correct numbers and letters. Each row, column and 4 x 4 box must end up containing all of the numbers from 1 to 9 and all the letters from "A" to "G". Each number and letter can only appear once in any row, column and 4 x 4 box. 100 Easy Sudoku 16 x 16 Puzzles Large 8.5 x 8.5 inch Book Layout Easy to read (1 Puzzle per Page) Large Inner Margin Advanced Solving Techniques Not Required Ideal For Beginners Solutions Included How the Puzzles are graded: Difficulty levels are determined by the complexity of the methods used to deduce the correct solution: Each level (Hard, Very Hard & Extreme) necessitates a mode of deduction which was not required in the previous level. The "Easy" and "Medium" Difficulty levels require no advance solving techniques, however, in the "Easy" level, there will always be one or more cells that can be filled-in, whereas, in the Medium level there is sometimes only one cell that can be filled-in at any one time. Easy: Ideal for beginners or those that simply want a very easy to solve Sudoku puzzle. No Advanced solving techniques required. Medium: A little more challenging than the "Easy" difficulty level. You may have to check a lot of rows, columns and 4 x 4 boxes before finding a cell that can be filled in. As with the "Easy" difficulty puzzles, advanced solving techniques are not required. Hard: The "Hard" difficulty level puzzles do require some advanced solving methods to be employed. These puzzles are more suited to those learning to use more complex deduction processes and moderately experienced Sudoku puzzle solvers. Very Hard: The "Very Hard" series is one step up from the "Hard" level, forcing the solver to use more complex deduction methods. This level is definitely one for the more experienced solvers and the Sudoku fanatic. Extreme: As the difficulty level suggests, these puzzles are extremely difficult to complete. Unless you are an expert Sudoku solver, these puzzles may be too hard for you.
Book Synopsis Sudoku 16x16 Large Print with Solutions by : Harrington Publishing
Download or read book Sudoku 16x16 Large Print with Solutions written by Harrington Publishing and published by Independently Published. This book was released on 2023-10-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Features: 100 hard sudoku puzzles. Large print makes it easy for the eyes (20 pt font size). 1 puzzle per page. Solutions included at the end of the book. Perfect gift for a friend, spouse or relative. Details: Size 8.5 x 11 inches 156 pages Matte finish cover design High quality white paper Get your copy today, and embark on a thrilling journey into the world of numbers and logic!
Book Synopsis Large Print Sudoku 16 X 16 by : Peter Minnick
Download or read book Large Print Sudoku 16 X 16 written by Peter Minnick and published by Createspace Independent Publishing Platform. This book was released on 2017-01-16 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large Print Sudoku 16 x 16 Volume 12 is ideal for people who are new to Sudoku and contains 50 easy puzzles. Sudoku, often described as a brain puzzle, a mind puzzle or a logic puzzle, is a fun game of logic requiring you to search for patterns and use deductive reasoning to find the missing numbers, or in this case letters, from a grid. Most importantly, it is a game that is suitable for all ages and which can be played anywhere - all you need is the book and a pencil! Large Print Sudoku Books come in 25 volumes covering both mixed level puzzle books and single level puzzle books ranging from 50 to 200 puzzles in each book and covering both 9 x 9 numerical puzzles and 16 x 16 alphabetical puzzles. Solutions are included in all cases.
Book Synopsis Large Print Sudoku 16 X 16 by : Peter Minnick
Download or read book Large Print Sudoku 16 X 16 written by Peter Minnick and published by Createspace Independent Publishing Platform. This book was released on 2017-01-16 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large Print Sudoku 16 x 16 Volume 24 is ideal for people who are new to Sudoku and contains 150 hard puzzles. Sudoku, often described as a brain puzzle, a mind puzzle or a logic puzzle, is a fun game of logic requiring you to search for patterns and use deductive reasoning to find the missing numbers, or in this case letters, from a grid. Most importantly, it is a game that is suitable for all ages and which can be played anywhere - all you need is the book and a pencil! Large Print Sudoku Books come in 25 volumes covering both mixed level puzzle books and single level puzzle books ranging from 50 to 200 puzzles in each book and covering both 9 x 9 numerical puzzles and 16 x 16 alphabetical puzzles. Solutions are included in all cases.
Book Synopsis Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Very Hard Puzzles Volume 6 by : Christian Demarco
Download or read book Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Very Hard Puzzles Volume 6 written by Christian Demarco and published by . This book was released on 2021-07-07 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to the Sudoku 16x16 Large Print Puzzle Books Series. The puzzles in the "Very Hard" version are ideal for experienced Sudoku solvers. Each puzzle has a unique solution that can be completed using simple logic. There is nothing more frustrating than purchasing a puzzle book only to find that it is either not challenging enough or too difficult to complete. Please read the full description to determine if the difficulty level of this book matches your level of solving skills. The Sudoku Puzzle Book series is available in the following difficulty levels: Easy, Medium, Hard, Very Hard and Extreme. All difficulty levels are available in the following formats: Sudoku and Sudoku-X. In my classic 16 x 16 Sudoku puzzles, the grid is 16 cells wide and 16 cells deep. The lines of squares running horizontally are called rows, and the lines running vertically are called columns. The grid is further divided by thicker lines into sixteen 4 x 4 square boxes. The aim of the puzzle is to fill the blank cells with the correct numbers and letters. Each row, column and 4 x 4 box must end up containing all of the numbers from 1 to 9 and all the letters from "A" to "G". Each number and letter can only appear once in any row, column and 4 x 4 box. 100 Hard Sudoku 16 x 16 Puzzles Large 8.5 x 8.5 inch Book Layout Easy to read (1 Puzzle per Page) Large Inner Margin Advanced Solving Techniques Required Ideal For Experienced Solvers Solutions Included How the Puzzles are graded: Difficulty levels are determined by the complexity of the methods used to deduce the correct solution: Each level (Hard, Very Hard & Extreme) necessitates a mode of deduction which was not required in the previous level. The "Easy" and "Medium" Difficulty levels require no advance solving techniques, however, in the "Easy" level, there will always be one or more cells that can be filled-in, whereas, in the Medium level there is sometimes only one cell that can be filled-in at any one time. Easy: Ideal for beginners or those that simply want a very easy to solve Sudoku puzzle. No Advanced solving techniques required. Medium: A little more challenging than the "Easy" difficulty level. You may have to check a lot of rows, columns and 4 x 4 boxes before finding a cell that can be filled in. As with the "Easy" difficulty puzzles, advanced solving techniques are not required. Hard: The "Hard" difficulty level puzzles do require some relatively simple advanced solving methods to be employed. These puzzles are more suited to those learning to use more complex deduction processes and moderately experienced Sudoku puzzle solvers. Very Hard: The "Very Hard" series is one step up from the "Hard" level, forcing the solver to use more complex deduction methods. This level is definitely one for the more experienced solvers and the Sudoku fanatic. Extreme: As the difficulty level suggests, these puzzles are extremely difficult to complete. Unless you are an expert Sudoku solver, these puzzles may be too hard for you.
Download or read book 16x16 Sudoku written by Learn Fun and published by . This book was released on 2021-11-05 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudoku is a popular and addictive logic puzzle game that has swept the globe. If you enjoy playing traditional Sudoku 9x9 but want a more difficult challenge, this book is for you. Sudoku 16x16 is a collection of 50 Sudoku with a grid of 16x16 problems and their solutions; The level of difficulty is Hard; Each riddle takes up a whole page, and looking at it is easy for the eyes; Sudoku problems are entertaining and fascinating, while also stimulating your brain.
Book Synopsis Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Medium Puzzles Volume 9 by : Christian Demarco
Download or read book Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Medium Puzzles Volume 9 written by Christian Demarco and published by . This book was released on 2021-05-03 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to the Sudoku 16x16 Large Print Puzzle Books Series. The puzzles in the "Medium" version are ideal for Sudoku beginners and those that just want a relatively easy 16x16 Sudoku puzzle to solve. There are no advanced solving methods required. Each puzzle has a unique solution which can be completed using simple logic. There is nothing more frustrating than purchasing a puzzle book only to find that it is either not challenging enough or too difficult to complete. Please read the full description to determine if the difficulty level of this book matches your level of solving skills. The Sudoku Puzzle Book series is available in the following difficulty levels: Easy, Medium, Hard, Very Hard and Extreme. All difficulty levels are available in the following formats: Sudoku, Sudoku-X, Jigsaw Sudoku & Jigsaw Sudoku-X. In my classic 16 x 16 Sudoku puzzles, the grid is 16 cells wide and 16 cells deep. The lines of squares running horizontally are called rows, and the lines running vertically are called columns. The grid is further divided by thicker lines into sixteen 4 x 4 square boxes. The aim of the puzzle is to fill the blank cells with the correct numbers and letters. Each row, column and 4 x 4 box must end up containing all of the numbers from 1 to 9 and all the letters from "A" to "G". Each number and letter can only appear once in any row, column and 4 x 4 box. 100 Medium Sudoku 16 x 16 Puzzles Large 8.5 x 8.5 inch Book Layout Easy to read (1 Puzzle per Page) Large Inner Margin Advanced Solving Techniques Not Required Ideal For Beginners Solutions Included How the Puzzles are graded: Difficulty levels are determined by the complexity of the methods used to deduce the correct solution: Each level (Hard, Very Hard & Extreme) necessitates a mode of deduction which was not required in the previous level. The "Easy" and "Medium" Difficulty levels require no advance solving techniques, however, in the "Easy" level, there will always be one or more cells that can be filled-in, whereas, in the Medium level there is sometimes only one cell that can be filled-in at any one time. Easy: Ideal for beginners or those that simply want a very easy to solve Sudoku puzzle. No Advanced solving techniques required. Medium: A little more challenging than the "Easy" difficulty level. You may have to check a lot of rows, columns and 4 x 4 boxes before finding a cell that can be filled in. As with the "Easy" difficulty puzzles, advanced solving techniques are not required. Hard: The "Hard" difficulty level puzzles do require some advanced solving methods to be employed. These puzzles are more suited to those learning to use more complex deduction processes and moderately experienced Sudoku puzzle solvers. Very Hard: The "Very Hard" series is one step up from the "Hard" level, forcing the solver to use more complex deduction methods. This level is definitely one for the more experienced solvers and the Sudoku fanatic. Extreme: As the difficulty level suggests, these puzzles are extremely difficult to complete. Unless you are an expert Sudoku solver, these puzzles may be too hard for you.
Book Synopsis Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Very Hard Puzzles Volume 5 by : Christian Demarco
Download or read book Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Very Hard Puzzles Volume 5 written by Christian Demarco and published by . This book was released on 2021-07-07 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to the Sudoku 16x16 Large Print Puzzle Books Series. The puzzles in the "Very Hard" version are ideal for experienced Sudoku solvers. Each puzzle has a unique solution that can be completed using simple logic. There is nothing more frustrating than purchasing a puzzle book only to find that it is either not challenging enough or too difficult to complete. Please read the full description to determine if the difficulty level of this book matches your level of solving skills. The Sudoku Puzzle Book series is available in the following difficulty levels: Easy, Medium, Hard, Very Hard and Extreme. All difficulty levels are available in the following formats: Sudoku and Sudoku-X. In my classic 16 x 16 Sudoku puzzles, the grid is 16 cells wide and 16 cells deep. The lines of squares running horizontally are called rows, and the lines running vertically are called columns. The grid is further divided by thicker lines into sixteen 4 x 4 square boxes. The aim of the puzzle is to fill the blank cells with the correct numbers and letters. Each row, column and 4 x 4 box must end up containing all of the numbers from 1 to 9 and all the letters from "A" to "G". Each number and letter can only appear once in any row, column and 4 x 4 box. 100 Hard Sudoku 16 x 16 Puzzles Large 8.5 x 8.5 inch Book Layout Easy to read (1 Puzzle per Page) Large Inner Margin Advanced Solving Techniques Required Ideal For Experienced Solvers Solutions Included How the Puzzles are graded: Difficulty levels are determined by the complexity of the methods used to deduce the correct solution: Each level (Hard, Very Hard & Extreme) necessitates a mode of deduction which was not required in the previous level. The "Easy" and "Medium" Difficulty levels require no advance solving techniques, however, in the "Easy" level, there will always be one or more cells that can be filled-in, whereas, in the Medium level there is sometimes only one cell that can be filled-in at any one time. Easy: Ideal for beginners or those that simply want a very easy to solve Sudoku puzzle. No Advanced solving techniques required. Medium: A little more challenging than the "Easy" difficulty level. You may have to check a lot of rows, columns and 4 x 4 boxes before finding a cell that can be filled in. As with the "Easy" difficulty puzzles, advanced solving techniques are not required. Hard: The "Hard" difficulty level puzzles do require some relatively simple advanced solving methods to be employed. These puzzles are more suited to those learning to use more complex deduction processes and moderately experienced Sudoku puzzle solvers. Very Hard: The "Very Hard" series is one step up from the "Hard" level, forcing the solver to use more complex deduction methods. This level is definitely one for the more experienced solvers and the Sudoku fanatic. Extreme: As the difficulty level suggests, these puzzles are extremely difficult to complete. Unless you are an expert Sudoku solver, these puzzles may be too hard for you.
Book Synopsis Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Hard Puzzles Volume 4 by : Christian Demarco
Download or read book Sudoku 16 X 16 Large Print Puzzle Books - Numbers and Letters Edition - 100 Hard Puzzles Volume 4 written by Christian Demarco and published by . This book was released on 2021-07-05 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to the Sudoku 16x16 Large Print Puzzle Books Series. The puzzles in the "Hard" version are ideal for moderately experienced Sudoku solvers and those learning to use more advanced solving techniques. There are some relatively simple advanced solving methods required. Each puzzle has a unique solution which can be completed using simple logic. There is nothing more frustrating than purchasing a puzzle book only to find that it is either not challenging enough or too difficult to complete. Please read the full description to determine if the difficulty level of this book matches your level of solving skills. The Sudoku Puzzle Book series is available in the following difficulty levels: Easy, Medium, Hard, Very Hard and Extreme. All difficulty levels are available in the following formats: Sudoku and Sudoku-X. In my classic 16 x 16 Sudoku puzzles, the grid is 16 cells wide and 16 cells deep. The lines of squares running horizontally are called rows, and the lines running vertically are called columns. The grid is further divided by thicker lines into sixteen 4 x 4 square boxes. The aim of the puzzle is to fill the blank cells with the correct numbers and letters. Each row, column and 4 x 4 box must end up containing all of the numbers from 1 to 9 and all the letters from "A" to "G". Each number and letter can only appear once in any row, column and 4 x 4 box. 100 Hard Sudoku 16 x 16 Puzzles Large 8.5 x 8.5 inch Book Layout Easy to read (1 Puzzle per Page) Large Inner Margin Some Simple Advanced Solving Techniques Required Ideal for Moderately Experienced Sudoku Solvers Solutions Included How the Puzzles are graded: Difficulty levels are determined by the complexity of the methods used to deduce the correct solution: Each level (Hard, Very Hard & Extreme) necessitates a mode of deduction which was not required in the previous level. The "Easy" and "Medium" Difficulty levels require no advance solving techniques, however, in the "Easy" level, there will always be one or more cells that can be filled-in, whereas, in the Medium level there is sometimes only one cell that can be filled-in at any one time. Easy: Ideal for beginners or those that simply want a very easy to solve Sudoku puzzle. No Advanced solving techniques required. Medium: A little more challenging than the "Easy" difficulty level. You may have to check a lot of rows, columns and 4 x 4 boxes before finding a cell that can be filled in. As with the "Easy" difficulty puzzles, advanced solving techniques are not required. Hard: The "Hard" difficulty level puzzles do require some relatively simple advanced solving methods to be employed. These puzzles are more suited to those learning to use more complex deduction processes and moderately experienced Sudoku puzzle solvers. Very Hard: The "Very Hard" series is one step up from the "Hard" level, forcing the solver to use more complex deduction methods. This level is definitely one for the more experienced solvers and the Sudoku fanatic. Extreme: As the difficulty level suggests, these puzzles are extremely difficult to complete. Unless you are an expert Sudoku solver, these puzzles may be too hard for you.
