Download or read book Futoshiki Grilles Mixtes Deluxe Difficile Volume 14 468 Grilles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-05-04 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lorsque vous achetez ce livre, vous obtenez une version numérique (fichier PDF) du contenu de ce livre. Le Futoshiki est un jeu de logique amusant et addictif qui combine le Sudoku avec des contraintes d'inégalités. Ce livre est idéal pour vous si vous aimez résoudre des grilles de Futoshiki difficiles de toutes tailles. Vous n'aurez pas besoin de feuilleter des tonnes de Futoshiki faciles avant d'arriver aux vrais casse-tête. Vous trouverez ici le parfait mélange de grilles de Sudoku de toutes tailles, idéal pour vous divertir durant des semaines. Une fois que vous aurez commencé ce livre, vous ne serez plus en mesure de vous arrêter. Vous voilà avertis! Le Futoshiki Grilles Mixtes Deluxe - Difficile contient 468 grilles: 136 grilles difficiles de Futoshiki 7x7 136 grilles difficiles de Futoshiki 8x8 136 grilles difficiles de Futoshiki 9x9 60 jeux de logique supplémentaires Je garantis que chaque jeu de logique dans ce livre de Futoshiki a été soigneusement vérifié afin de vous assurer que chacun des jeux ne possède qu'une seule solution. Aucun des jeux de ce livre n'apparaît dans un autre PuzzleBooks.net livre de jeux français. Ce livre est la version française de 'Futoshiki Mixed Grids Deluxe - Hard - Volume 14 - 468 Logic Puzzles'. Futoshiki est également connu sous le nom de Inégal.

Download or read book Futoshiki Mixed Grids Deluxe Hard Volume 14 468 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-20 with total page 292 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. Futoshiki is a fun and addicting logic puzzle game that combines Sudoku with inequality constraints. This book is ideal for you if you love to solve difficult Futoshiki puzzles no matter their size. You do not need to wade through tons of easy Futoshiki puzzles before getting to the real brain teasers. You will experience Futoshiki 7x7, Futoshiki 8x8 and Futoshiki 9x9. You get the perfect mix of different sizes of Futoshiki to keep you entertained for weeks. Once you pick up this book, you won't be able to put it back down. You have been warned! Futoshiki Mixed Grids Deluxe - Hard is a collection of 468 puzzles: 136 hard Futoshiki 7x7 puzzles 136 hard Futoshiki 8x8 puzzles 136 hard Futoshiki 9x9 puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book CalcuDoku Mixed Grids Deluxe Hard Volume 14 468 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-20 with total page 292 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. CalcuDoku is a fun and addicting logic puzzle game that combines Sudoku with math. CalcuDoku is a fun way for kids and adults to practice addition, subtraction, multiplication, and division facts. This book is ideal for you if you love to solve difficult CalcuDoku puzzles no matter their size. You do not need to wade through tons of easy CalcuDoku puzzles before getting to the real brain teasers. You will experience extremely difficult CalcuDoku 7x7, CalcuDoku 8x8 and CalcuDoku 9x9. You get the perfect mix of different sizes of CalcuDoku to keep you entertained for weeks. Once you pick up this book, you won't be able to put it back down. You have been warned! CalcuDoku Mixed Grids Deluxe - Hard is a collection of 468 puzzles: 136 hard CalcuDoku 7x7 puzzles 136 hard CalcuDoku 8x8 puzzles 136 hard CalcuDoku 9x9 puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this CalcuDoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books. CalcuDoku is also known as Square Wisdom, CanCan, MinuPlu, Mathdoku and Calcu-Doku.

Download or read book Futoshiki Mixed Grids Deluxe Easy to Hard Volume 6 474 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-17 with total page 292 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. Become a master in solving Futoshiki. You will experience Futoshiki 7x7, Futoshiki 8x8 and Futoshiki 9x9. You get the perfect mix of different sizes of Futoshiki to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Futoshiki Pro. You start with easy Futoshiki puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely hard Futoshiki puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Futoshiki Mixed Grids Deluxe - Easy to Hard is a collection of 474 puzzles: 48 easy Futoshiki puzzles per grid size, totaling 144 easy puzzles 48 medium Futoshiki puzzles per grid size, totaling 144 medium puzzles 48 hard Futoshiki puzzles per grid size, totaling 144 hard puzzles 42 extra logic puzzles The goal of Futoshiki is to place one number in each empty cell, so that each column and row contains each number exactly once. Some numbers may be given at the start. In addition, inequality constraints are specified between some of the squares, such that the number must be higher or lower than its neighbor. These constraints must be honored as the grid is filled out. I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book Futoshiki Mixed Grids Hard Volume 4 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-17 with total page 180 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. Futoshiki is a fun and addicting logic puzzle game that combines Sudoku with inequality constraints. This book is ideal for you if you love to solve difficult Futoshiki puzzles no matter their size. You do not need to wade through tons of easy Futoshiki puzzles before getting to the real brain teasers. You will experience Futoshiki 7x7, Futoshiki 8x8 and Futoshiki 9x9. You get the perfect mix of different sizes of Futoshiki to keep you entertained for weeks. Once you pick up this book, you won't be able to put it back down. You have been warned! Futoshiki Mixed Grids - Hard is a collection of 276 puzzles: 72 hard Futoshiki 7x7 puzzles 72 hard Futoshiki 8x8 puzzles 72 hard Futoshiki 9x9 puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book Futoshiki 9x9 Deluxe Hard Volume 13 468 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-20 with total page 292 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. Futoshiki is a fun and addicting logic puzzle game that combines Sudoku with inequality constraints. This book is ideal for you if you love to solve difficult Futoshiki 9x9 puzzles. You do not need to wade through tons of easy Futoshiki puzzles before getting to the real brain teasers. Once you pick up this book, you won't be able to put it back down. You have been warned! Futoshiki 9x9 Deluxe - Hard is a collection of 468 puzzles: 408 hard Futoshiki 9x9 puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book Futoshiki 9x9 Deluxe Easy to Hard Volume 12 468 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-11-21 with total page 292 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. Become a master in solving Futoshiki 9x9. After solving all the puzzles in this book, you will be a Futoshiki Pro. You start with easy Futoshiki puzzles and you gradually build your way up to extremely hard Futoshiki puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Futoshiki 9x9 Deluxe - Easy to Hard is a collection of 468 puzzles: 136 easy Futoshiki 9x9 puzzles 136 medium Futoshiki 9x9 puzzles 136 hard Futoshiki 9x9 puzzles 60 extra logic puzzles The goal of Futoshiki is to place one number in each empty cell, so that each column and row contains each number exactly once. Some numbers may be given at the start. In addition, inequality constraints are specified between some of the squares, such that the number must be higher or lower than its neighbor. These constraints must be honored as the grid is filled out. I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book Futoshiki Mixed Grids Easy Volume 2 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-17 with total page 180 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. Futoshiki is a fun and addicting logic puzzle game that combines Sudoku with inequality constraints. This book is ideal for beginners to learn how to solve different sizes of Futoshiki. You will experience Futoshiki 7x7, Futoshiki 8x8 and Futoshiki 9x9. You get the perfect mix of different sizes of Futoshiki to keep you entertained for weeks. Once you pick up this book, you won't be able to put it back down. You have been warned! Futoshiki Mixed Grids - Easy is a collection of 276 puzzles: 72 easy Futoshiki 7x7 puzzles 72 easy Futoshiki 8x8 puzzles 72 easy Futoshiki 9x9 puzzles 60 extra logic puzzles The goal of Futoshiki is to place one number in each empty cell, so that each column and row contains each number exactly once. Some numbers may be given at the start. In addition, inequality constraints are specified between some of the squares, such that the number must be higher or lower than its neighbor. These constraints must be honored as the grid is filled out. I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book Futoshiki Mixed Grids Large Print Easy to Hard Volume 5 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-17 with total page 310 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. Become a master in solving Futoshiki. You will experience Futoshiki 7x7, Futoshiki 8x8 and Futoshiki 9x9. You get the perfect mix of different sizes of Futoshiki to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Futoshiki Pro. You start with easy Futoshiki puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely hard Futoshiki puzzles. 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. Futoshiki Mixed Grids Large Print - Easy to Hard is a collection of 276 puzzles: 24 easy Futoshiki puzzles per grid size, totaling 72 easy puzzles 24 medium Futoshiki puzzles per grid size, totaling 72 medium puzzles 24 hard Futoshiki puzzles per grid size, totaling 72 hard puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book CalcuDoku 9x9 Deluxe Hard Volume 13 468 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-20 with total page 292 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. CalcuDoku is a fun and addicting logic puzzle game that combines Sudoku with math. CalcuDoku is a fun way for kids and adults to practice addition, subtraction, multiplication, and division facts. This book is ideal for you if you love to solve difficult CalcuDoku 9x9 puzzles. You do not need to wade through tons of easy CalcuDoku puzzles before getting to the real brain teasers. Once you pick up this book, you won't be able to put it back down. You have been warned! CalcuDoku 9x9 Deluxe - Hard is a collection of 468 puzzles: 408 hard CalcuDoku 9x9 puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this CalcuDoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books. CalcuDoku is also known as Square Wisdom, CanCan, MinuPlu, Mathdoku and Calcu-Doku.

Download or read book Futoshiki For Kids Mixed Grids Easy to Hard Volume 1 145 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-11-14 with total page 98 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. Futoshiki is a fun and addicting logic puzzle game that combines Sudoku with inequality constraints. Futoshiki is ideal to introduce your child to inequality signs and logical thinking. Futoshiki teaches your child logical thinking and deductive reasoning skills, even at a young age. Futoshiki improves critical thinking and making quick decisions based upon available evidence. Futoshiki is a brain game that helps to train the brain of your child. In addition, Futoshiki demands attention to detail - noticing patterns, spotting opportunities, and finding the right moment to make a move. Futoshiki is not only fun and interesting – it might just help prepare your kids for better success in school and in life. Futoshiki For Kids Mixed Grids - Easy to Hard is a collection of 145 puzzles: 44 easy Futoshiki puzzles, going from 4x4 to 9x9 40 medium Futoshiki puzzles, going from 4x4 to 9x9 40 hard Futoshiki puzzles, going from 4x4 to 9x9 21 extra logic puzzles The goal of Futoshiki is to place one number in each empty cell, so that each column and row contains each number exactly once. Some numbers may be given at the start. In addition, inequality constraints are specified between some of the squares, such that the number must be higher or lower than its neighbor. These constraints must be honored as the grid is filled out. I guarantee that every logic puzzle in this Futoshiki book has been carefully checked to ensure that each puzzle has only 1 solution. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book Futoshiki Mixed Grids Easy to Hard Volume 1 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-17 with total page 180 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. Become a master in solving Futoshiki. You will experience Futoshiki 7x7, Futoshiki 8x8 and Futoshiki 9x9. You get the perfect mix of different sizes of Futoshiki to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Futoshiki Pro. You start with easy Futoshiki puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely hard Futoshiki puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Futoshiki Mixed Grids - Easy to Hard is a collection of 276 puzzles: 24 easy Futoshiki puzzles per grid size, totaling 72 easy puzzles 24 medium Futoshiki puzzles per grid size, totaling 72 medium puzzles 24 hard Futoshiki puzzles per grid size, totaling 72 hard puzzles 60 extra logic puzzles The goal of Futoshiki is to place one number in each empty cell, so that each column and row contains each number exactly once. Some numbers may be given at the start. In addition, inequality constraints are specified between some of the squares, such that the number must be higher or lower than its neighbor. These constraints must be honored as the grid is filled out. I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book Futoshiki Mixed Grids Medium Volume 3 276 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-17 with total page 180 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. Futoshiki is a fun and addicting logic puzzle game that combines Sudoku with inequality constraints. This book is ideal for you if you already know how to solve Futoshiki puzzles but you find our hard Futoshiki puzzles too difficult. You will experience Futoshiki 7x7, Futoshiki 8x8 and Futoshiki 9x9. You get the perfect mix of different sizes of Futoshiki to keep you entertained for weeks. Once you pick up this book, you won't be able to put it back down. You have been warned! Futoshiki Mixed Grids - Medium is a collection of 276 puzzles: 72 medium Futoshiki 7x7 puzzles 72 medium Futoshiki 8x8 puzzles 72 medium Futoshiki 9x9 puzzles 60 extra logic puzzles The goal of Futoshiki is to place one number in each empty cell, so that each column and row contains each number exactly once. Some numbers may be given at the start. In addition, inequality constraints are specified between some of the squares, such that the number must be higher or lower than its neighbor. These constraints must be honored as the grid is filled out. I guarantee that every logic puzzle in this Futoshiki puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other PuzzleBooks.net books. Futoshiki is also known as Hutoshiki and Unequal.

Download or read book Futoshiki Gemischte Gitter Luxus Schwer Band 14 468 R tsel written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-04-26 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wenn Sie dieses Buch kaufen, erhalten Sie eine elektronische Version (PDF-Datei) des Inhalts dieses Buches. Futoshiki ist ein lustiges und fesselndes Logikpuzzlespiel, das Sudoku mit Ungleichungsbedingungen verbindet. Dieses Buch ist ideal, wenn Sie es lieben, schwierige und diabolische Futoshiki-Rätsel zu lösen. Sie brauchen nicht durch jede Menge von einfachen Futoshiki-Rätseln zu gehen, bevor Sie zu den echten und realen Denkspielen gelangen. Sie erhalten den perfekten Mix aus verschiedenen Größen von Futoshiki, und Sie erhalten Spaß für Wochen. Wenn Sie nur einmal dieses Buch in die Hand nehmen, werden Sie es nicht mehr ablegen. Sie wurden gewarnt! Futoshiki Gemischte Gitter Luxus - Schwer ist eine Sammlung von 468 Rätseln: 136 schwere Futoshiki 7x7 Rätsel 136 schwere Futoshiki 8x8 Rätsel 136 schwere Futoshiki 9x9 Rätsel 60 zusätzliche Logik-Puzzles Ich garantiere, dass jedes Logik-Puzzle in diesem Futoshiki Rätselbuch sorgfältig geprüft wurde, um sicherzustellen, dass jedes Puzzle nur eine Lösung hat. Keines der Rätsel in diesem Buch wird in anderen deutschen PuzzleBooks.net Büchern erscheinen. Dieses Buch ist die deutsche Version von 'Futoshiki Mixed Grids Deluxe - Hard - Volume 14 - 468 Logic Puzzles'.

Download or read book Mixed Grid Futoshiki Puzzles written by and published by . This book was released on 2020-05-18 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Challenge your brain and have a fun time with the challenging Futoshiki puzzles in this book. This Book has 270 Puzzles of Futoshiki (7x7, 8x8, and 9x9 grid) in 3 levels easy, medium, and hard (30 Puzzles in each level for each grid size). Answers to all the puzzles are included at the end of the book. What is Futoshiki and how to solve it? You start with a grid with rows, columns, some numbers, and signs of greater than or less than separating the cells. The aim is to use logic to fill the grid with numbers (according to grid size) that appear once in the row and once in the column like Sudoku taking into consideration the greater than or less than signs. Why you'll love this book? Scientific research has shown that solving logic puzzles as Sudoku keeps your mind younger and your memory sharper. it's a unique gift for anyone who is in love with math and numbers. 3 levels of difficulty from easy to hard, so, when you solve the problems, you will gradually increase your skills until the extreme levels at the end of the book. Features: Size: 8 x 11.5 inch (large size) with softcover and paperback binding. Pages: 96 pages with 270 different puzzles (four per page) and the solutions of all the puzzles at the end. Stretch your brain with this unique selection of challenging, fun puzzles, and games. Scroll up and order your copy.

Download or read book Futoshiki Grades de V rios Tamanhos Deluxe Dif cil Volume 14 468 Jogos written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-06-06 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ao comprar este livro, você recebe uma versão eletrônica (arquivo PDF) do interior deste livro. Futoshiki é um jogo lógico divertido e viciante que combina o Sudoku com as restrições de desigualdade. Este livro é ideal para você, se você gosta de resolver jogos de Futoshiki difíceis, sem importar o seu nível. Você não precisa de percorrer toneladas de jogos de Futoshiki fáceis antes de chegar aos verdadeiros estimuladores cerebrais. Uma mistura perfeita de diferentes tamanhos de Futoshiki para o manter entretido durante semanas. Uma vez que você pegar este livro nas mãos, não será capaz de colocá-lo de volta na mesa. Você foi avisado! Futoshiki Grades de Vários Tamanhos Deluxe - Difícil é uma coleçao 468 jogos: 136 jogos Futoshiki 7x7 difícil 136 jogos Futoshiki 8x8 difícil 136 jogos Futoshiki 9x9 difícil 60 jogos lógicos extras Eu garanto que todos os jogos de lógica neste livro de jogos Futoshiki foram cuidadosamente verificado para garantir que cada um tenha apenas uma solução. Nenhum dos jogos neste livro vai aparecer em qualquer dos outros livros portugueses. Este livro é a versão portuguesa de 'Futoshiki Mixed Grids Deluxe - Hard - Volume 14 - 468 Logic Puzzles'. O Futoshiki também é conhecido como Desigual.

Download or read book Masyu Mixed Grids Deluxe Easy to Hard Volume 6 474 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-02-20 with total page 292 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. Become a master in solving different sizes of Masyu. You get the perfect mix of different sizes of Masyu to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Masyu Pro. You start with easy Masyu puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely difficult Masyu puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Masyu Mixed Grids Deluxe - Easy to Hard is a collection of 474 puzzles: 48 easy Masyu puzzles per grid size, totaling 144 easy puzzles 48 medium Masyu puzzles per grid size, totaling 144 medium puzzles 48 hard Masyu puzzles per grid size, totaling 144 hard puzzles 42 extra logic puzzles The goal of Masyu is to draw a single continuous non-intersecting loop that passes through all circled cells. The loop must enter each cell it passes through from the center of one of its four sides and exit from a different side. All turns are therefore 90 degrees. White circles must be traveled straight through, but the loop must turn in the previous and/or next cell in its path. Black circles must be turned upon, but the loop must travel straight through the next and previous cells in its path. I guarantee that every logic puzzle in this Masyu puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books. Masyu is also known as Shiroshinju Kuroshinju, White Pearls and Black Pearls.