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Books in 1000 Sudoku Puzzles series

  • SUPER-CHALLENGING SUDOKU PUZZLES FOR KIDS: Brain-Twisting Sudoku Puzzles for Focus and Intelligence Kids Need for Optimal Learning

    Digital Solution

    Paperback (Independently published, April 22, 2020)
    Improve Your Kids' Memory and Focus with Sudoku Puzzles Why play Sudoku puzzles?Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brain that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in society.Sudoku teaches that life is full of challengesWith different levels of Sudoku puzzles, we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of kids and adultsrelaxation during holidays, leave, picnics vacations and travelsretirees who may be exposed to stress and lonelinessstudents to enhance their thinking skillsa great gift for seniors, the physically or visually challenged ( large prints allows for better reading experience)as a great workout for kids’ braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays Featuresover 300 puzzles of different levels of difficulty- easy, medium, hard, very hard suitable for all levels from beginners to experts large print fonts - 8.5 x 11 includes solutions for each puzzle grid high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain- excellent for de-stressing 4 puzzles per page great fun for the whole family!Grab yourself a copy. Scroll up and click ADD TO CART. Train your kids’ brain to stay focused for optimal learning.
  • EASY SUDOKU PUZZLES FOR KIDS: Simple Sudoku Puzzles for Focus and Intelligence Kids Need for Optimal Learning

    Digital Solution

    Paperback (Independently published, April 19, 2020)
    Let Your Kids Enjoy their Spare Time, Improve their memory and Increase Concentration by playing Sudoku Why play Sudoku puzzles?Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brains that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in society. Sudoku teaches that life is full of challengesWith different levels of Sudoku puzzles, we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of kids and adultsrelaxation during holidays, leave, picnics, vacations, and travelsretirees who may be exposed to lonelinessstudents to enhance their thinking skillsa great gift for kids, the physically or visually challenged ( large prints allows for better reading experience)as a great workout for kids' braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays and road tripsFeaturesover 280 puzzles of different levels of difficulty- easy, medium, and hard contains 9 x 9 and 16 x 16 puzzle grids suitable for all levels from beginners to experts large print fonts - 8.5 x 11 includes solutions for each puzzle high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain and excellent for de-stressing 4 puzzles per page and in some cases one large 16x16 per page great fun for the whole family!Grab yourself a copy. Scroll up and click ADD TO CART. Train your kid's brain to stay focused and relax.
  • ULTRA-PUZZLING SUDOKU BOOK FOR ADULTS: Super-Challenging 16 x 16 Sudoku Puzzles Adults Require for Focus, Intelligence, Stress Relief and Optimal Memory

    Digital Solution

    Paperback (Independently published, April 23, 2020)
    Enjoy Your Spare Time, Relieve Stress, Improve Your Memory and Increase Your Power of Focus by Playing Super Challenging 16 x 16 Sudoku Puzzles Why play Sudoku puzzles? Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brain that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in the society.Sudoku teaches us that life is full of challengesWith different levels of Sudoku puzzles we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of clever kids and adultsrelaxation during holidays, leave, picnics vacations and travelsretirees and working adults who may be exposed to lonelinessstudents to enhance their thinking skillsa great gift for seniorsas a great workout for kids’ and adults' braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays and road tripsFeaturesover 70 puzzles of high levels of difficulty suitable for all levels from beginners to experts includes solutions for each puzzle high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain- excellent for de-stressing great fun for the whole family! Grab yourself a copy. Scroll up and click ADD TO CART. Train your brain to stay focused, attain optimal stress relief, and enhanced memory.
  • SUPER-PUZZLING SUDOKU BOOK FOR KIDS 6-8: Challenging Sudoku Puzzles for Focus and Intelligence Kids Need for Optimal Learning

    Digital Solution

    Paperback (Independently published, April 22, 2020)
    Improve Your Kids' Memory and Focus with Sudoku Puzzles Why play Sudoku puzzles?Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brain that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in society.Sudoku teaches that life is full of challengesWith different levels of Sudoku puzzles, we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of kids and adultsrelaxation during holidays, leave, picnics vacations and travelsretirees who may be exposed to stress and lonelinessstudents to enhance their thinking skillsa great gift for seniors, the physically or visually challenged ( large prints allows for better reading experience)as a great workout for kids’ braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays Featuresover 300 puzzles of different levels of difficulty- easy, medium, hard, very hard suitable for all levels from beginners to experts large print fonts - 8.5 x 11 includes solutions for each puzzle grid high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain- excellent for de-stressing 4 puzzles per page great fun for the whole family!Grab yourself a copy. Scroll up and click ADD TO CART. Train your kids’ brain to stay focused for optimal learning.
  • BRAIN-TEASING SUDOKU BOOK FOR KIDS 4-8: Super-Challenging Sudoku Puzzles for Focus and Intelligence Kids Need for Optimal Learning

    Digital Solution

    Paperback (Independently published, April 22, 2020)
    Let Your Kids Enjoy their Spare Time, Improve their memory and Increase Concentration by playing Sudoku Why play Sudoku puzzles?Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brains that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in society. Sudoku teaches that life is full of challengesWith different levels of Sudoku puzzles, we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of kids and adultsrelaxation during holidays, leave, picnics, vacations, and travelsretirees who may be exposed to lonelinessstudents to enhance their thinking skillsa great gift for kids, the physically or visually challenged ( large prints allows for better reading experience)as a great workout for kids' braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays and road tripsFeaturesover 300 puzzles of different levels of difficulty- easy, medium, and hard contains 9 x 9 puzzle grids suitable for all levels from beginners to experts includes solutions for each puzzle high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain and excellent for de-stressing 4 puzzles per page With solutions to all puzzles great fun for the whole family!Grab yourself a copy. Scroll up and click ADD TO CART. Train your kid's brain to stay focused for optimal learning.
  • AMAZING SUDOKU BOOK FOR KIDS 8-12: Easy to Hard Sudoku Puzzles for Focus and Intelligence Kids Need for Superb Learning

    Digital Solution

    Paperback (Independently published, April 22, 2020)
    Improve Your Kids' Memory and Focus with Sudoku Puzzles Why play Sudoku puzzles?Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brain that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in society.Sudoku teaches that life is full of challengesWith different levels of Sudoku puzzles, we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of kids and adultsrelaxation during holidays, leave, picnics vacations and travelsretirees who may be exposed to stress and lonelinessstudents to enhance their thinking skillsa great gift for seniors, the physically or visually challenged ( large prints allows for better reading experience)as a great workout for kids’ braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays Featuresover 300 puzzles of different levels of difficulty- easy, medium, hard, very hard suitable for all levels from beginners to experts large print fonts - 8.5 x 11 includes solutions for each puzzle grid high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain- excellent for de-stressing 4 puzzles per page great fun for the whole family!Grab yourself a copy. Scroll up and click ADD TO CART. Train your kids’ brain to stay focused for optimal learning.
  • 50 Easy SUDOKU Puzzles: For Beginners - Slim Size, Easy To Carry, 6"x 9"

    Om Yssmeen, Coloring Journals

    Paperback (CreateSpace Independent Publishing Platform, May 20, 2018)
    SUDOKU puzzle book to for beginners who want to test themselves at this great brain game.Includes 50 easy-grade puzzles - one puzzle on each page with extra white space added for scribbling.The slim size of the book makes it easy to carry around while traveling, waiting for appointments, etc.Product dimensions:Trim size: 6" x 9"Page count: 64Cover: Glossy paperbackBinding: Perfect binding
  • BRAIN-BENDING SUDOKU BOOK FOR KIDS 12-14: Super-Puzzling Sudoku Puzzles for Focus and Intelligence Kids Need for Optimal Learning

    Digital Solution

    Paperback (Independently published, April 22, 2020)
    Improve Your Kids' Memory and Focus with Sudoku Puzzles Why play Sudoku puzzles?Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brain that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in society.Sudoku teaches that life is full of challengesWith different levels of Sudoku puzzles, we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of kids and adultsrelaxation during holidays, leave, picnics vacations and travelsretirees who may be exposed to stress and lonelinessstudents to enhance their thinking skillsa great gift for seniors, the physically or visually challenged ( large prints allows for better reading experience)as a great workout for kids’ braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays Featuresover 300 puzzles of different levels of difficulty- easy, medium, hard, very hard suitable for all levels from beginners to experts large print fonts - 8.5 x 11 includes solutions for each puzzle grid high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain- excellent for de-stressing 4 puzzles per page great fun for the whole family!Grab yourself a copy. Scroll up and click ADD TO CART. Train your kids’ brain to stay focused for optimal learning.
  • INTELLIGENT SUDOKU BOOK FOR KIDS 3-5: Easy to Hard Puzzles for Focus and Intelligence Kids Need for Maximal Learning

    Digital Solution

    Paperback (Independently published, April 22, 2020)
    Improve Your Kids' Memory and Focus with Sudoku Puzzles Why play Sudoku puzzles?Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brain that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in society.Sudoku teaches that life is full of challengesWith different levels of Sudoku puzzles, we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of kids and adultsrelaxation during holidays, leave, picnics vacations and travelsretirees who may be exposed to stress and lonelinessstudents to enhance their thinking skillsa great gift for seniors, the physically or visually challenged ( large prints allows for better reading experience)as a great workout for kids’ braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays Featuresover 300 puzzles of different levels of difficulty- easy, medium, hard, very hard suitable for all levels from beginners to experts large print fonts - 8.5 x 11 includes solutions for each puzzle grid high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain- excellent for de-stressing 4 puzzles per page great fun for the whole family!Grab yourself a copy. Scroll up and click ADD TO CART. Train your kids’ brain to stay focused for optimal learning.
  • SUPER FUN SUDOKU PUZZLES FOR KIDS: Easy to Hard Sudoku Puzzles for Focus and Intelligence Kids Need for Optimal Learning

    Digital Solution

    Paperback (Independently published, April 22, 2020)
    Let Your Kids Enjoy their Spare Time, Improve their memory and Increase Concentration by playing Sudoku Why play Sudoku puzzles?Playing Sudoku basically gives your brain a great workout. With improved memory and increased focus, many of life's issues can be resolved including stress and cognitive decline. Some studies have suggested that playing Sudoku puzzles every day can activate brain functions equivalent to someone 10 years younger especially by improving short-term memory. Other studies at Rush University Medical Center in Chicago revealed that completing puzzles regularly could delay the onset of degenerative diseases such as dementia. Seniors can, therefore, activate different parts of their brains that are less utilized. Hence, the American Alzheimer's Association endorsed Sudoku as a brain game that might assist to lessen the risk of dementia in senior citizens.Why taking a break to unwind with Sudoku puzzle is a great ideaRelaxation may not be in everybody's playbook. But every health-conscious individual knows the invaluable benefit of sometimes getting away from phones, TV and engaging their spare time on entertaining brain games such as Sudoku or other brain-teasing puzzles. This shift in focus from the day-to-day activities to activities involving mental exercise does a lot to improve our health and social standing in society. Sudoku teaches that life is full of challengesWith different levels of Sudoku puzzles, we are graphically reminded that this life abounds in myriad challenges. Sudoku comprises very easy, easy, normal, medium, hard, and very hard puzzles, for example, 4x4, 6x6, 9x9 and 16x16 puzzles. With these different levels of puzzles, players are reminded that life is filled with challenges- some mild, some median, some super challenging.This Sudoku puzzle book is ideal for:improving memory and logic skills of kids and adultsrelaxation during holidays, leave, picnics, vacations, and travelsretirees who may be exposed to lonelinessstudents to enhance their thinking skillsa great gift for kids, the physically or visually challenged ( large prints allows for better reading experience)as a great workout for kids' braintesting the intellectual difference and capabilities of kids or students of the same age or class great gifts for birthdays and road tripsFeaturesover 280 puzzles of different levels of difficulty- easy, medium, and hard contains 9 x 9 and 16 x 16 puzzle grids suitable for all levels from beginners to experts large print fonts - 8.5 x 11 includes solutions for each puzzle high-quality print- puzzles printed on white paper Wide margins so you can tear out pages easily provides great exercise for the brain and excellent for de-stressing 4 puzzles per page and in some cases one large 16x16 per page great fun for the whole family!Grab yourself a copy. Scroll up and click ADD TO CART. Train your kid's brain to stay focused for optimal learning.
  • 100 Hard Sudoku Puzzles

    Fin Nobot, Booksbio

    Paperback (Independently published, Sept. 1, 2019)
    Unique Solutions to 100 Hard Sudoku Puzzles (Volume 4). Includes free bonus puzzles you can download. LARGE PUZZLES printed one per page. This excellent book contains 100 Large-Print Sudoku Puzzles. All results are behind the book. Increase the effectiveness of your brain function with 100 Hard Sudoku Puzzles (Volume 4) . The numbers are thicker and more comfortable to read than in most Sudoku books. This excellent book contains 50 Hard and 50 Difficult Sudoku puzzles.We work very hard to get quality books for you.
  • 100 Hard Sudoku Puzzles

    Fin Nobot, Booksbio

    Paperback (Independently published, Sept. 1, 2019)
    Unique Solutions to 100 Hard Sudoku Puzzles (Volume 5). Includes free bonus puzzles you can download. LARGE PUZZLES printed one per page. This excellent book contains 100 Large-Print Sudoku Puzzles. All results are behind the book. Increase the effectiveness of your brain function with 100 Hard Sudoku Puzzles (Volume 5) . The numbers are thicker and more comfortable to read than in most Sudoku books. This excellent book contains 50 Hard and 50 Difficult Sudoku puzzles.We work very hard to get quality books for you.