The Big Book of Kakuro Puzzles

The Big Book of Kakuro Puzzles

Author: Conceptis Puzzles

Publisher: Sterling Publishing Company, Inc.

Published: 2006-03

Total Pages: 324

ISBN-13: 9781402739262

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What kakuro fan could resist this huge collection? Featuring 940 grids in varying levels of difficulty, it has more than enough to satisfy even the most avid enthusiast. Half sudoku, half crossword, language-free kakuro is set to become the next worldwide puzzle phenomenon. The basics are simple: just fill in the empty squares using numbers from 1 to 9 so that the sum of each horizontal set of squares equals the clue on its left, and the sum of each vertical set of squares equals the clue on the top. No number can appear more than once in any sum. An introduction explains all the rules, gives good solving tips, and takes beginners through a sample puzzle.


Book Synopsis The Big Book of Kakuro Puzzles by : Conceptis Puzzles

Download or read book The Big Book of Kakuro Puzzles written by Conceptis Puzzles and published by Sterling Publishing Company, Inc.. This book was released on 2006-03 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: What kakuro fan could resist this huge collection? Featuring 940 grids in varying levels of difficulty, it has more than enough to satisfy even the most avid enthusiast. Half sudoku, half crossword, language-free kakuro is set to become the next worldwide puzzle phenomenon. The basics are simple: just fill in the empty squares using numbers from 1 to 9 so that the sum of each horizontal set of squares equals the clue on its left, and the sum of each vertical set of squares equals the clue on the top. No number can appear more than once in any sum. An introduction explains all the rules, gives good solving tips, and takes beginners through a sample puzzle.


King-Sized Kakuro Mixed Grids - Volume 1 - 153 Puzzles

King-Sized Kakuro Mixed Grids - Volume 1 - 153 Puzzles

Author: Nick Snels

Publisher: PuzzleBooks.net

Published: 2014-10-12

Total Pages: 180

ISBN-13: 1502809117

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When you buy this book you get an electronic version (PDF file) of the interior of this book. King-Sized Kakuro bundles the biggest and baddest Kakuro puzzles ever. Your brain will work overtime on these colossal logic math puzzles. Kakuro is a fun way for kids and adults to practice addition facts. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 Kakuro puzzle per page, with lots of white space for scribbling. King-Sized Kakuro Mixed Grids is a collection of 153 puzzles: 30 Kakuro 19x19 puzzles 30 Kakuro 20x20 puzzles 30 Kakuro 21x21 puzzles 30 Kakuro 22x22 puzzles 33 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro and Cross Addition. Kakuro is also quite often misspelled as Kakura.


Book Synopsis King-Sized Kakuro Mixed Grids - Volume 1 - 153 Puzzles by : Nick Snels

Download or read book King-Sized Kakuro Mixed Grids - Volume 1 - 153 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-12 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. King-Sized Kakuro bundles the biggest and baddest Kakuro puzzles ever. Your brain will work overtime on these colossal logic math puzzles. Kakuro is a fun way for kids and adults to practice addition facts. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 Kakuro puzzle per page, with lots of white space for scribbling. King-Sized Kakuro Mixed Grids is a collection of 153 puzzles: 30 Kakuro 19x19 puzzles 30 Kakuro 20x20 puzzles 30 Kakuro 21x21 puzzles 30 Kakuro 22x22 puzzles 33 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro and Cross Addition. Kakuro is also quite often misspelled as Kakura.


King-Sized Kakuro Mixed Grids Deluxe - Volume 8 - 249 Logic Puzzles

King-Sized Kakuro Mixed Grids Deluxe - Volume 8 - 249 Logic Puzzles

Author: Nick Snels

Publisher: PuzzleBooks.net

Published: 2016-09-24

Total Pages: 292

ISBN-13: 1539064441

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When you buy this book you get an electronic version (PDF file) of the interior of this book. Kakuro is a fun way for kids and adults to practice addition facts. This book is ideal if you love to play Kakuro no matter their size. This book is ideal for beginners to learn how to solve different sizes of Kakuro. You get the perfect mix of different sizes of Kakuro 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! King-Sized Kakuro Mixed Grids Deluxe is a collection of 249 puzzles: 108 Kakuro 19x19 puzzles 108 Kakuro 20x20 puzzles 33 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro, Cross Addition. Quite often Kakuro is misspelled as Kakura.


Book Synopsis King-Sized Kakuro Mixed Grids Deluxe - Volume 8 - 249 Logic Puzzles by : Nick Snels

Download or read book King-Sized Kakuro Mixed Grids Deluxe - Volume 8 - 249 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. Kakuro is a fun way for kids and adults to practice addition facts. This book is ideal if you love to play Kakuro no matter their size. This book is ideal for beginners to learn how to solve different sizes of Kakuro. You get the perfect mix of different sizes of Kakuro 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! King-Sized Kakuro Mixed Grids Deluxe is a collection of 249 puzzles: 108 Kakuro 19x19 puzzles 108 Kakuro 20x20 puzzles 33 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro, Cross Addition. Quite often Kakuro is misspelled as Kakura.


King-Sized Kakuro Mixed Grids Deluxe - Volume 2 - 249 Puzzles

King-Sized Kakuro Mixed Grids Deluxe - Volume 2 - 249 Puzzles

Author: Nick Snels

Publisher: PuzzleBooks.net

Published: 2014-10-12

Total Pages: 292

ISBN-13: 1502809869

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When you buy this book you get an electronic version (PDF file) of the interior of this book. King-Sized Kakuro Deluxe bundles the biggest and baddest Kakuro puzzles ever. Your brain will work overtime on these colossal logic math puzzles. Kakuro is a fun way for kids and adults to practice addition facts. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 Kakuro puzzle per page, with lots of white space for scribbling. King-Sized Kakuro Mixed Grids is a collection of 153 puzzles: 54 Kakuro 19x19 puzzles 54 Kakuro 20x20 puzzles 54 Kakuro 21x21 puzzles 54 Kakuro 22x22 puzzles 54 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro and Cross Addition. Kakuro is also quite often misspelled as Kakura.


Book Synopsis King-Sized Kakuro Mixed Grids Deluxe - Volume 2 - 249 Puzzles by : Nick Snels

Download or read book King-Sized Kakuro Mixed Grids Deluxe - Volume 2 - 249 Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2014-10-12 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. King-Sized Kakuro Deluxe bundles the biggest and baddest Kakuro puzzles ever. Your brain will work overtime on these colossal logic math puzzles. Kakuro is a fun way for kids and adults to practice addition facts. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 Kakuro puzzle per page, with lots of white space for scribbling. King-Sized Kakuro Mixed Grids is a collection of 153 puzzles: 54 Kakuro 19x19 puzzles 54 Kakuro 20x20 puzzles 54 Kakuro 21x21 puzzles 54 Kakuro 22x22 puzzles 54 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro and Cross Addition. Kakuro is also quite often misspelled as Kakura.


Mensa® Kakuro

Mensa® Kakuro

Author: Conceptis Puzzles

Publisher: Sterling Publishing Company, Inc.

Published: 2006-08

Total Pages: 324

ISBN-13: 9781402739378

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What could be more appealing to Mensa members--or anyone who enjoys a good challenge--than a cunning test of intelligence and logic? That's exactly what these 250 puzzles provide. The trick to kakuro is in making it all add up: the game begins with a grid that looks like a crossword, except that some squares contain small numbers in the corner. Fill in all the empty boxes using the numbers 1 to 9 without repeats so that the sum of each horizontal set of digits equals the number in the black triangle to its left, and the sum of each vertical set of digits equals the number in the triangle above it. The kakuro puzzles start out simple...and get more difficult as the book progresses.


Book Synopsis Mensa® Kakuro by : Conceptis Puzzles

Download or read book Mensa® Kakuro written by Conceptis Puzzles and published by Sterling Publishing Company, Inc.. This book was released on 2006-08 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: What could be more appealing to Mensa members--or anyone who enjoys a good challenge--than a cunning test of intelligence and logic? That's exactly what these 250 puzzles provide. The trick to kakuro is in making it all add up: the game begins with a grid that looks like a crossword, except that some squares contain small numbers in the corner. Fill in all the empty boxes using the numbers 1 to 9 without repeats so that the sum of each horizontal set of digits equals the number in the black triangle to its left, and the sum of each vertical set of digits equals the number in the triangle above it. The kakuro puzzles start out simple...and get more difficult as the book progresses.


King-Sized Kakuro 21x21 - Volume 9 - 153 Logic Puzzles

King-Sized Kakuro 21x21 - Volume 9 - 153 Logic Puzzles

Author: Nick Snels

Publisher: PuzzleBooks.net

Published: 2016-09-24

Total Pages: 180

ISBN-13: 1539064492

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When you buy this book you get an electronic version (PDF file) of the interior of this book. Kakuro is a fun way for kids and adults to practice addition facts. This book is ideal for beginners to learn Kakuro. Once you pick up this book, you won't be able to put it back down. You have been warned! King-Sized Kakuro 21x21 is a collection of 153 puzzles: 120 Kakuro 21x21 puzzles 33 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro, Cross Addition. Quite often Kakuro is misspelled as Kakura.


Book Synopsis King-Sized Kakuro 21x21 - Volume 9 - 153 Logic Puzzles by : Nick Snels

Download or read book King-Sized Kakuro 21x21 - Volume 9 - 153 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2016-09-24 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. Kakuro is a fun way for kids and adults to practice addition facts. This book is ideal for beginners to learn Kakuro. Once you pick up this book, you won't be able to put it back down. You have been warned! King-Sized Kakuro 21x21 is a collection of 153 puzzles: 120 Kakuro 21x21 puzzles 33 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro, Cross Addition. Quite often Kakuro is misspelled as Kakura.


Sudoku Big Book Kakuro - 500 Logic Puzzles 11x11

Sudoku Big Book Kakuro - 500 Logic Puzzles 11x11

Author: Dart Veider

Publisher: Createspace Independent Publishing Platform

Published: 2018-10-14

Total Pages: 128

ISBN-13: 9781727862157

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Kakuro (also known as "Cross Sums" and "Kakro") is a logic puzzle, a mathematical equivalent of crosswords. The puzzle consists of a playing area of filled and empty cells similar to a crossword puzzle. Some black cells contain a diagonal slash from top left to bottom right with numbers in them, called "the clues". A number in the top right corner relates to an "across" clue and one in the bottom left a "down" clue. The object of a kakuro is to insert digits from 1 to 9 into the white cells to total the clue associated with it. However no digit can be duplicated in an entry. For example the total 6 you could have 1 and 5, 2 and 4 but not 3 and 3. The puzzle books series contain: * 500 Logic Puzzles * Handy 6 x 9 inch Book Layout * 6 Puzzles per Page * Ideal for both Beginners and Experts. The book is for those who like logic and math problems. Decide, developing and improving.


Book Synopsis Sudoku Big Book Kakuro - 500 Logic Puzzles 11x11 by : Dart Veider

Download or read book Sudoku Big Book Kakuro - 500 Logic Puzzles 11x11 written by Dart Veider and published by Createspace Independent Publishing Platform. This book was released on 2018-10-14 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kakuro (also known as "Cross Sums" and "Kakro") is a logic puzzle, a mathematical equivalent of crosswords. The puzzle consists of a playing area of filled and empty cells similar to a crossword puzzle. Some black cells contain a diagonal slash from top left to bottom right with numbers in them, called "the clues". A number in the top right corner relates to an "across" clue and one in the bottom left a "down" clue. The object of a kakuro is to insert digits from 1 to 9 into the white cells to total the clue associated with it. However no digit can be duplicated in an entry. For example the total 6 you could have 1 and 5, 2 and 4 but not 3 and 3. The puzzle books series contain: * 500 Logic Puzzles * Handy 6 x 9 inch Book Layout * 6 Puzzles per Page * Ideal for both Beginners and Experts. The book is for those who like logic and math problems. Decide, developing and improving.


Sudoku Big Book Kakuro - 500 Logic Puzzles 9x9

Sudoku Big Book Kakuro - 500 Logic Puzzles 9x9

Author: Dart Veider

Publisher: Createspace Independent Publishing Platform

Published: 2018-10-14

Total Pages: 128

ISBN-13: 9781727862133

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Kakuro (also known as "Cross Sums" and "Kakro") is a logic puzzle, a mathematical equivalent of crosswords. The puzzle consists of a playing area of filled and empty cells similar to a crossword puzzle. Some black cells contain a diagonal slash from top left to bottom right with numbers in them, called "the clues". A number in the top right corner relates to an "across" clue and one in the bottom left a "down" clue. The object of a kakuro is to insert digits from 1 to 9 into the white cells to total the clue associated with it. However no digit can be duplicated in an entry. For example the total 6 you could have 1 and 5, 2 and 4 but not 3 and 3. The puzzle books series contain: * 500 Logic Puzzles * Handy 6 x 9 inch Book Layout * 6 Puzzles per Page * Ideal for both Beginners and Experts. The book is for those who like logic and math problems. Decide, developing and improving.


Book Synopsis Sudoku Big Book Kakuro - 500 Logic Puzzles 9x9 by : Dart Veider

Download or read book Sudoku Big Book Kakuro - 500 Logic Puzzles 9x9 written by Dart Veider and published by Createspace Independent Publishing Platform. This book was released on 2018-10-14 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kakuro (also known as "Cross Sums" and "Kakro") is a logic puzzle, a mathematical equivalent of crosswords. The puzzle consists of a playing area of filled and empty cells similar to a crossword puzzle. Some black cells contain a diagonal slash from top left to bottom right with numbers in them, called "the clues". A number in the top right corner relates to an "across" clue and one in the bottom left a "down" clue. The object of a kakuro is to insert digits from 1 to 9 into the white cells to total the clue associated with it. However no digit can be duplicated in an entry. For example the total 6 you could have 1 and 5, 2 and 4 but not 3 and 3. The puzzle books series contain: * 500 Logic Puzzles * Handy 6 x 9 inch Book Layout * 6 Puzzles per Page * Ideal for both Beginners and Experts. The book is for those who like logic and math problems. Decide, developing and improving.


Sudoku Big Book Kakuro - 500 Logic Puzzles 12x12 (Volume 14)

Sudoku Big Book Kakuro - 500 Logic Puzzles 12x12 (Volume 14)

Author: Dart Veider

Publisher:

Published: 2020-08-11

Total Pages: 130

ISBN-13:

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Kakuro (also known as "Cross Sums" and "Kakro") is a logic puzzle, a mathematical equivalent of crosswords. The puzzle consists of a playing area of filled and empty cells similar to a crossword puzzle. Some black cells contain a diagonal slash from top left to bottom right with numbers in them, called "the clues". A number in the top right corner relates to an "across" clue and one in the bottom left a "down" clue. The object of a kakuro is to insert digits from 1 to 9 into the white cells to total the clue associated with it. However no digit can be duplicated in an entry. For example the total 6 you could have 1 and 5, 2 and 4 but not 3 and 3. The puzzle books series contain: - 500 Logic Puzzles - Handy 6 x 9 inch Book Layout - 6 Puzzles per Page - Ideal for both Beginners and Experts. The book is for those who like logic and math problems. Decide, developing and improving.


Book Synopsis Sudoku Big Book Kakuro - 500 Logic Puzzles 12x12 (Volume 14) by : Dart Veider

Download or read book Sudoku Big Book Kakuro - 500 Logic Puzzles 12x12 (Volume 14) written by Dart Veider and published by . This book was released on 2020-08-11 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kakuro (also known as "Cross Sums" and "Kakro") is a logic puzzle, a mathematical equivalent of crosswords. The puzzle consists of a playing area of filled and empty cells similar to a crossword puzzle. Some black cells contain a diagonal slash from top left to bottom right with numbers in them, called "the clues". A number in the top right corner relates to an "across" clue and one in the bottom left a "down" clue. The object of a kakuro is to insert digits from 1 to 9 into the white cells to total the clue associated with it. However no digit can be duplicated in an entry. For example the total 6 you could have 1 and 5, 2 and 4 but not 3 and 3. The puzzle books series contain: - 500 Logic Puzzles - Handy 6 x 9 inch Book Layout - 6 Puzzles per Page - Ideal for both Beginners and Experts. The book is for those who like logic and math problems. Decide, developing and improving.


Kakuro Mixed Grids - Volume 6 - 270 Logic Puzzles

Kakuro Mixed Grids - Volume 6 - 270 Logic Puzzles

Author: Nick Snels

Publisher: PuzzleBooks.net

Published: 2015-02-21

Total Pages: 180

ISBN-13: 1508575975

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When you buy this book you get an electronic version (PDF file) of the interior of this book. Kakuro is a fun and addicting logic puzzle game. This book is ideal if you love to play Kakuro. This book is ideal for Kakuro lovers but you find our King-Sized Kakuro books too difficult or too tedious. You get the perfect mix of different smaller sizes of Kakuro 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! Kakuro Mixed Grids is a collection of 270 puzzles: 54 Kakuro 13x13 puzzles 54 Kakuro 14x14 puzzles 54 Kakuro 15x15 puzzles 54 Kakuro 16x16 puzzles 54 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro, Cross Addition. Quite often Kakuro is misspelled as Kakura.


Book Synopsis Kakuro Mixed Grids - Volume 6 - 270 Logic Puzzles by : Nick Snels

Download or read book Kakuro Mixed Grids - Volume 6 - 270 Logic Puzzles written by Nick Snels and published by PuzzleBooks.net. This book was released on 2015-02-21 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. Kakuro is a fun and addicting logic puzzle game. This book is ideal if you love to play Kakuro. This book is ideal for Kakuro lovers but you find our King-Sized Kakuro books too difficult or too tedious. You get the perfect mix of different smaller sizes of Kakuro 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! Kakuro Mixed Grids is a collection of 270 puzzles: 54 Kakuro 13x13 puzzles 54 Kakuro 14x14 puzzles 54 Kakuro 15x15 puzzles 54 Kakuro 16x16 puzzles 54 extra logic puzzles The goal of Kakuro is to insert numbers into the white cells. Possible numbers are always 1 to 9. The sum of each horizontal block must equal the clue on its left. The sum of each vertical block must equal the clue above it. You can only use a number once in each horizontal or vertical block. I guarantee that every logic puzzle in this Kakuro 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. Kakuro is also known as Cross Sums, Kakro, Kakkuro, Cross Addition. Quite often Kakuro is misspelled as Kakura.