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Book Beautiful Mates

    Book Details:
  • Author : Ben P. Walls
  • Publisher : Universal-Publishers
  • Release : 1997-10
  • ISBN : 1581120095
  • Pages : 117 pages

Download or read book Beautiful Mates written by Ben P. Walls and published by Universal-Publishers. This book was released on 1997-10 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: A synopsis of eminent computer chess programs reveal that they are designed around a 'brute force' approach. An argument is made that by continuing the 'brute force' search approach, computer chess development is moving away from human evaluation methods. Research is done into studies of evaluation methods, and a discovery is made that humans use a form of intuition, called their 'sense of beauty', to choose the best chess move. A paper by Margulies is cited which formulates principles of beauty which apply to chess. Three versions of a chess program are developed, using no heuristics, standard chess heuristics, and beauty heuristics formulated from Margulies principles. The performance of the three versions of the program are compared using chess puzzles, and rated for how quickly they find the solution, and how few nodes they evaluate. Graphs are produced from the results of these tests, showing that beauty heuristics are, on average, 15% faster at finding the solution, and evaluate 10% fewer nodes. An improvement is implemented in all versions of the program which biases the search towards better moves, resulting in the beauty heuristics success rising to an average of 25% faster to the solution, and evaluating 33% fewer nodes, than the other heuristics. It is concluded that the beauty heuristics are closer to the way that humans evaluate chess positions.

Book Hidoku Mixed Grids Deluxe   Easy to Hard   Volume 5   255 Logic Puzzles

Download or read book Hidoku Mixed Grids Deluxe Easy to Hard Volume 5 255 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-21 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 Hidoku. You will experience Hidoku 20x20, Hidoku 25x25 and Hidoku 30x30. You get the perfect mix of different sizes of Hidoku to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Hidoku Pro. You start with easy Hidoku puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely difficult and colossal Hidoku puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 Hidoku puzzle per page, with lots of white space for scribbling. Hidoku Mixed Grids Deluxe - Easy to Hard is a collection of 255 puzzles: 24 easy Hidoku puzzles per grid size, totaling 72 easy puzzles 24 medium Hidoku puzzles per grid size, totaling 72 medium puzzles 24 hard Hidoku puzzles per grid size, totaling 72 hard puzzles 39 extra logic puzzles The goal of Hidoku is to fill the grid with consecutive numbers that connect horizontally, vertically, or diagonally. In every Hidoku puzzle, the smallest and the highest number are presented in the grid. I guarantee that every logic puzzle in this Hidoku 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. Hidoku is also known as Number Snake.

Book Hidoku Mixed Grids   Medium   Volume 3   156 Logic Puzzles

Download or read book Hidoku Mixed Grids Medium Volume 3 156 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-21 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. Hidoku is a fun and addicting logic puzzle game. It is very similar to Numbricks. The goal of Hidoku is to fill in the missing numbers, in sequential order, going horizontally, vertically and diagonally. Unlike Numbricks, diagonal paths are allowed. This book is ideal for you if you already know how to solve Hidoku puzzles but you find our hard Hidoku puzzles too difficult. You will experience Hidoku 20x20, Hidoku 25x25 and Hidoku 30x30. You get the perfect mix of different sizes of Hidoku 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! Only 1 Hidoku puzzle per page, with lots of white space for scribbling. Hidoku Mixed Grids - Medium is a collection of 156 puzzles: 42 medium Hidoku 20x20 puzzles 42 medium Hidoku 25x25 puzzles 42 medium Hidoku 30x30 puzzles 30 extra logic puzzles The goal of Hidoku is to fill the grid with consecutive numbers that connect horizontally, vertically, or diagonally. In every Hidoku puzzle, the smallest and the highest number are presented in the grid. I guarantee that every logic puzzle in this Hidoku 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. Hidoku is also known as Number Snake.

Book Hidoku Mixed Grids   Easy to Hard   Volume 1   156 Puzzles

Download or read book Hidoku Mixed Grids Easy to Hard Volume 1 156 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-20 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 Hidoku. You will experience Hidoku 20x20, Hidoku 25x25 and Hidoku 30x30. You get the perfect mix of different sizes of Hidoku to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Hidoku Pro. You start with easy Hidoku puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely hard and colossal Hidoku puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Hidoku Mixed Grids - Easy to Hard is a collection of 156 puzzles: 14 easy Hidoku puzzles per grid size, totaling 42 easy puzzles 14 medium Hidoku puzzles per grid size, totaling 42 medium puzzles 14 hard Hidoku puzzles per grid size, totaling 42 hard puzzles 30 extra logic puzzles The goal of Hidoku is to fill the grid with consecutive numbers that connect horizontally, vertically, or diagonally. In every Hidoku puzzle, the smallest and the highest number are presented in the grid. I guarantee that every logic puzzle in this Hidoku 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. Hidoku is also known as Number Snake.

Book Hidoku Mixed Grids   Hard   Volume 4   156 Logic Puzzles

Download or read book Hidoku Mixed Grids Hard Volume 4 156 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-12-21 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. Hidoku is a fun and addicting logic puzzle game. It is very similar to Numbricks. The goal of Hidoku is to fill in the missing numbers, in sequential order, going horizontally, vertically and diagonally. Unlike Numbricks, diagonal paths are allowed. This book is ideal for you if you love to solve difficult and huge Hidoku puzzles. You do not need to wade through tons of easy Hidoku puzzles before getting to the real brain teasers. You will experience Hidoku 20x20, Hidoku 25x25 and Hidoku 30x30. You get the perfect mix of different sizes of Hidoku 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! Only 1 Hidoku puzzle per page, with lots of white space for scribbling. Hidoku Mixed Grids - Hard is a collection of 156 puzzles: 42 hard Hidoku 20x20 puzzles 42 hard Hidoku 25x25 puzzles 42 hard Hidoku 30x30 puzzles 30 extra logic puzzles I guarantee that every logic puzzle in this Hidoku 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. Hidoku is also known as Number Snake.

Book Hidato 3

    Book Details:
  • Author : Gyora Benedek
  • Publisher : Andrews McMeel Publishing
  • Release : 2012-06-12
  • ISBN : 1449418201
  • Pages : 242 pages

Download or read book Hidato 3 written by Gyora Benedek and published by Andrews McMeel Publishing. This book was released on 2012-06-12 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this third Hidato collection we offer challenging puzzles in five difficulty levels with practice and bonus puzzles included. Hidato® is a pure logic puzzle that is easy to learn and difficult to master, making it the perfect challenge. Each Hidato puzzle starts with a grid partially filled with numbers. The goal is to fill the grid with consecutive numbers that connect horizontally, vertically, or diagonally. Hidato can be solved using 100 percent logic and requires no math or guesswork. You need only careful thought and determination to solve Hidato® puzzles. Hidato 3 presents 200 brand-new Hidato puzzles for hours of summer puzzling.

Book Pocket Posh Hidato 3

Download or read book Pocket Posh Hidato 3 written by The Puzzle Society and published by Andrews McMeel Publishing. This book was released on 2013-02-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of challenging Hidato puzzles adorned in Pocket Posh fashion. Featured in Japan's #1 puzzle magazine, Hidato® is a captivating logic puzzle solved through careful thought and logical reasoning. Our third Pocket Posh Hidato collection presents one hundred challenging puzzles in five difficulty levels. Hidato® is a pure logic puzzle that is easy to learn and difficult to master, making it the perfect challenge. Each hidato puzzle starts with a grid partially filled with numbers. The goal is to fill the grid with consecutive numbers that connect horizontally, vertically, or diagonally. Hidato can be solved using 100 percent logic and requires no math or guesswork. You need only careful thought and determination to solve Hidato® puzzles. This 100-puzzle collection delivers hours of mind-sharpening fun. This attractive, tidy package is sized for portability and is part of our best-selling series of puzzle books that feature highly stylized, embellished covers and boast 5 million copies in print. A free trial subscription to The Puzzle Society™ adds extra value.

Book Nurikabe Mixed Grids Deluxe   Easy to Hard   Volume 6   474 Logic Puzzles

Download or read book Nurikabe 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 2015-03-31 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 Nurikabe. You get the perfect mix of different sizes of Nurikabe to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Nurikabe Pro. You start with easy Nurikabe puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely difficult Nurikabe puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Nurikabe Mixed Grids Deluxe - Easy to Hard is a collection of 474 puzzles: 48 easy Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 144 easy puzzles 48 medium Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 144 medium puzzles 48 hard Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 144 hard puzzles 42 extra logic puzzles I guarantee that every logic puzzle in this Nurikabe 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. Nurikabe is also known as Cell Structure, Islands in the Stream.

Book Nurikabe Mixed Grids Deluxe   Easy to Hard   Volume 12   474 Logic Puzzles

Download or read book Nurikabe Mixed Grids Deluxe Easy to Hard Volume 12 474 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2016-09-24 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 Nurikabe. You get the perfect mix of different sizes of Nurikabe to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Nurikabe Pro. You start with easy Nurikabe puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely difficult Nurikabe puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Nurikabe Mixed Grids Deluxe - Easy to Hard is a collection of 474 puzzles: 48 easy Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 144 easy puzzles 48 medium Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 144 medium puzzles 48 hard Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 144 hard puzzles 42 extra logic puzzles I guarantee that every logic puzzle in this Nurikabe 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. Nurikabe is also known as Cell Structure, Islands in the Stream.

Book Nurikabe Mixed Grids Large Print   Easy to Hard   Volume 11   276 Logic Puzzles

Download or read book Nurikabe Mixed Grids Large Print Easy to Hard Volume 11 276 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2016-09-24 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 different sizes of Nurikabe. You get the perfect mix of different sizes of Nurikabe to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Nurikabe Pro. You start with easy Nurikabe puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely difficult Nurikabe 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. Nurikabe Mixed Grids Large Print - Easy to Hard is a collection of 276 puzzles: 24 easy Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 72 easy puzzles 24 medium Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 72 medium puzzles 24 hard Nurikabe puzzles per grid size (10x10, 12x12, 14x14), totaling 72 hard puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this Nurikabe 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. Nurikabe is also known as Cell Structure, Islands in the Stream.

Book Masyu Mixed Grids   Easy   Volume 2   276 Logic Puzzles

Download or read book Masyu Mixed Grids Easy Volume 2 276 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-02-20 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. Masyu is a fun and addicting logic puzzle game. This book is ideal if you love to play Masyu no matter their size. This book is ideal for beginners to learn how to solve different sizes of Masyu. You get the perfect mix of different sizes of Masyu 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! Masyu Mixed Grids - Easy is a collection of 276 puzzles: 72 easy Masyu 11x11 puzzles 72 easy Masyu 13x13 puzzles 72 easy Masyu 15x15 puzzles 60 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.

Book Easy Sudoku by5 Logic Puzzles  Vol 1

Download or read book Easy Sudoku by5 Logic Puzzles Vol 1 written by T. P. Smith and published by Group Puzzles Publishing. This book was released on 2011-07-12 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sharpen your mind and strengthen your logic skills with one hundred new Sudoku-by5 logic puzzles, complete with step-by-step deductive solutions for every puzzle. In this series, puzzle difficulty is ranked as "Easy" with numeric rankings ranging from 3 to 4. This book is a new type of Hybrid eBook/Print book. A hybrid book consists of a traditional paperback book, containing puzzles and answers, and an on-line companion set of web pages for the print book, containing detailed step-by-step solutions for each puzzle, instructions for each puzzle type, and other information related to the paperback version of the book. Each print book title has a unique Internet web URL that points the reader directly to the eBook information for that particular print book. You can preview the on-line extras and step-by-step solutions for this particular book at its URL: http://www.grouppuzzles.com/titles/B6C9096D/

Book Kenken Method   Puzzles For Beginners  The  150 Puzzles And Solutions To Make You Smarter

Download or read book Kenken Method Puzzles For Beginners The 150 Puzzles And Solutions To Make You Smarter written by Fuhrer Robert and published by World Scientific. This book was released on 2018-01-10 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: KenKen is the world's fastest growing puzzle since sudoku. It was developed in a Japanese Classroom in 2004 by renowned educator, Tetsuya Miyamoto, and was later introduced internationally as both an adult and educational math and logic puzzle in 2008. Originally intended to improve reasoning, creativity, concentration, and perseverance, this simple yet sophisticated puzzle has since expanded beyond the classroom into a global sensation. KenKen can be found daily in The New York Times and is now available in over 200 publications worldwide. Unlimited KenKen puzzles can be accessed on www.kenkenpuzzle.com and can also be played on mobile devices via the KenKen Classic app. It is supported by the National Council of Teachers of Mathematics (NCTM), the world's largest math education organization, and is used by over 30,000 educators worldwide. ]How to Play? Contents: IntroductionHow to Use This BookThe Rules of KenKenStep-by-Step Tutorial for Beginners3x3 Puzzles4x4 Puzzles (Easiest Level): Addition, Addition & Subtraction, All 4 Operations4x4 Puzzles (Easy Level): Addition, Addition & Subtraction, All 4 Operations4x4 Puzzles (Medium Level): Addition, Addition & Subtraction, All 4 Operations5x5 Puzzles (Easiest Level): Addition, Addition & Subtraction, All 4 Operations5x5 Puzzles (Easy Level): Addition, Addition & Subtraction, All 4 Operations5x5 Puzzles (Medium Level): Addition, Addition & Subtraction, All 4 Operations6x6 Puzzles (Easiest Level): Addition, Addition & Subtraction, All 4 Operations6x6 Puzzles (Easy Level): All 4 OperationsSolutions Readership: General public who like to solve puzzles. Keywords: Math Puzzles;Logic Puzzles;Make Math Fun;New York Times;Will Shortz;Tetsuya Miyamoto;Educational Games;Suduko;KenKenReview:0

Book Mega Sudoku 16x16 Large Print   Easy   Volume 57   276 Logic Puzzles

Download or read book Mega Sudoku 16x16 Large Print Easy Volume 57 276 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 for beginners to learn Sudoku. 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 - Easy is a collection of 276 puzzle: 216 easy Sudoku 16x16 puzzle 60 extra logic puzzle The goal of Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains each number exactly once. 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 Nurikabe Mixed Grids   Medium   Volume 3   276 Logic Puzzles

Download or read book Nurikabe Mixed Grids Medium Volume 3 276 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-03-31 with total page 181 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. Nurikabe is a fun and addicting binary determination puzzle. This book is ideal if you know how to play Nurikabe no matter their size, but you find our hard Nurikabe puzzles too difficult. You get the perfect mix of different sizes of Nurikabe 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! Nurikabe Mixed Grids - Medium is a collection of 276 puzzles: 72 medium Nurikabe 10x10 puzzles 72 medium Nurikabe 12x12 puzzles 72 medium Nurikabe 14x14 puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this Nurikabe 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. Nurikabe is also known as Cell Structure, Islands in the Stream.

Book Nurikabe Mixed Grids   Hard   Volume 4   276 Logic Puzzles

Download or read book Nurikabe Mixed Grids Hard Volume 4 276 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-03-31 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. Nurikabe is a fun and addicting binary determination puzzle. This book is ideal for you if you love to solve difficult Nurikabe puzzles no matter their size. You do not need to wade through tons of easy Nurikabe puzzles before getting to the real brain teasers. You get the perfect mix of different sizes of Nurikabe 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! Nurikabe Mixed Grids - Hard is a collection of 276 puzzles: 72 hard Nurikabe 10x10 puzzles 72 hard Nurikabe 12x12 puzzles 72 hard Nurikabe 14x14 puzzles 60 extra logic puzzles I guarantee that every logic puzzle in this Nurikabe 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. Nurikabe is also known as Cell Structure, Islands in the Stream.

Book Masyu Mixed Grids Deluxe   Easy to Hard   Volume 6   474 Logic Puzzles

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.