Bøger af John Collins

Numbricks - kind of logic puzzle. It is a rectangular grid in which some cells are numbers. Required to fill the empty cells so that all the numbers have been connected in series horizontally or vertically. Moving diagonally is not allowed.

Sudoku X also called Diagonal Sudoku.The puzzle is a 8x8 grid made up of 4x2 subgrids (called "regions").Some cells already contain numbers, known as "givens".The goal is to fill in the empty cells, one number in each, so that each column, row, region and diagonal contains the numbers 1 through 8 exactly once.Each number in the solution therefore occurs only once in each of three "directions", hence the "single numbers" implied by the puzzle's name.

Numbricks - kind of logic puzzle. It is a rectangular grid in which some cells are numbers. Required to fill the empty cells so that all the numbers have been connected in series horizontally or vertically. Moving diagonally is not allowed.

Straights is a logic puzzle.It is a grid, partially divided by black cells into compartments.Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid).No single number can repeat in any row or column.Clues in black cells remove that number as an option in that row and column, and are not part of any straight.

Binary puzzle (also known as "Binairo", "Takuzu", "Tohu wa Vohu") is a logic puzzle that you can solve by using only zeros and ones. The rectangular or square grid should fill the numbers in accordance with the following rules: - Each row and each column contain the same number of digits "1" as digits "0" (or one more for odd sized grids). - The same number can only be in no more than two cells in a row. - Each line must be unique, and each column must be unique. In the book you will find a description and examples of solutions for all puzzles.The book is for those who like logic and math problems. Decide, developing and improving.

Numbricks - kind of logic puzzle. It is a rectangular grid in which some cells are numbers. Required to fill the empty cells so that all the numbers have been connected in series horizontally or vertically. Moving diagonally is not allowed.

Straights is a logic puzzle.It is a grid, partially divided by black cells into compartments.Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid).No single number can repeat in any row or column.Clues in black cells remove that number as an option in that row and column, and are not part of any straight.

Straights is a logic puzzle.It is a grid, partially divided by black cells into compartments.Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid).No single number can repeat in any row or column.Clues in black cells remove that number as an option in that row and column, and are not part of any straight.

Diagonal Sudoku also called Sudoku X.The puzzle is a 10x10 grid made up of 5x2 subgrids (called "regions").Some cells already contain numbers, known as "givens".The goal is to fill in the empty cells, one number in each, so that each column, row, region and diagonal contains the numbers 1 through 10 exactly once.Each number in the solution therefore occurs only once in each of three "directions", hence the "single numbers" implied by the puzzle's name.

Suguru (also known as "Number Blocks") is a logic puzzle that has simple rules, but which provides sufficient challenges to satisfy the most enthusiastic solvers!The task consists of a rectangular or square grid divided into regions.Each region must be filled with each of the digits from 1 to the number of cells in the region.Cells with the same digits must not be orthogonally or diagonally adjacent.Even though the rules are simple, you will need all your skills to solve it.

Binary puzzle (also known as "Binairo", "Takuzu", "Tohu wa Vohu") is a logic puzzle that you can solve by using only zeros and ones. The rectangular or square grid should fill the numbers in accordance with the following rules: - Each row and each column contain the same number of digits "1" as digits "0" (or one more for odd sized grids). - The same number can only be in no more than two cells in a row. - Each line must be unique, and each column must be unique. In the book you will find a description and examples of solutions for all puzzles.The book is for those who like logic and math problems. Decide, developing and improving.

Binary puzzle (also known as "Binairo", "Takuzu", "Tohu wa Vohu") is a logic puzzle that you can solve by using only zeros and ones. The rectangular or square grid should fill the numbers in accordance with the following rules: - Each row and each column contain the same number of digits "1" as digits "0" (or one more for odd sized grids). - The same number can only be in no more than two cells in a row. - Each line must be unique, and each column must be unique. In the book you will find a description and examples of solutions for all puzzles.The book is for those who like logic and math problems. Decide, developing and improving.

Straights is a logic puzzle.It is a grid, partially divided by black cells into compartments.Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid).No single number can repeat in any row or column.Clues in black cells remove that number as an option in that row and column, and are not part of any straight.

Suguru (also known as "Number Blocks") is a logic puzzle that has simple rules, but which provides sufficient challenges to satisfy the most enthusiastic solvers!The task consists of a rectangular or square grid divided into regions.Each region must be filled with each of the digits from 1 to the number of cells in the region.Cells with the same digits must not be orthogonally or diagonally adjacent.Even though the rules are simple, you will need all your skills to solve it.

Diagonal Sudoku also called Sudoku X.The puzzle is a 10x10 grid made up of 5x2 subgrids (called "regions").Some cells already contain numbers, known as "givens".The goal is to fill in the empty cells, one number in each, so that each column, row, region and diagonal contains the numbers 1 through 10 exactly once.Each number in the solution therefore occurs only once in each of three "directions", hence the "single numbers" implied by the puzzle's name.

Straights is a logic puzzle.It is a grid, partially divided by black cells into compartments.Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid).No single number can repeat in any row or column.Clues in black cells remove that number as an option in that row and column, and are not part of any straight.

Binary puzzle (also known as "Binairo", "Takuzu", "Tohu wa Vohu") is a logic puzzle that you can solve by using only zeros and ones. The rectangular or square grid should fill the numbers in accordance with the following rules: - Each row and each column contain the same number of digits "1" as digits "0" (or one more for odd sized grids). - The same number can only be in no more than two cells in a row. - Each line must be unique, and each column must be unique. In the book you will find a description and examples of solutions for all puzzles.The book is for those who like logic and math problems. Decide, developing and improving.

Diagonal Sudoku also called Sudoku X.The puzzle is a 9x9 grid made up of 3x3 subgrids (called "regions").Some cells already contain numbers, known as "givens".The goal is to fill in the empty cells, one number in each, so that each column, row, region and diagonal contains the numbers 1 through 9 exactly once.Each number in the solution therefore occurs only once in each of three "directions", hence the "single numbers" implied by the puzzle's name.

Suguru (also known as "Number Blocks") is a logic puzzle that has simple rules, but which provides sufficient challenges to satisfy the most enthusiastic solvers!The task consists of a rectangular or square grid divided into regions.Each region must be filled with each of the digits from 1 to the number of cells in the region.Cells with the same digits must not be orthogonally or diagonally adjacent.Even though the rules are simple, you will need all your skills to solve it.

Straights is a logic puzzle.It is a grid, partially divided by black cells into compartments.Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid).No single number can repeat in any row or column.Clues in black cells remove that number as an option in that row and column, and are not part of any straight.

Binary puzzle (also known as "Binairo", "Takuzu", "Tohu wa Vohu") is a logic puzzle that you can solve by using only zeros and ones. The rectangular or square grid should fill the numbers in accordance with the following rules: - Each row and each column contain the same number of digits "1" as digits "0" (or one more for odd sized grids). - The same number can only be in no more than two cells in a row. - Each line must be unique, and each column must be unique. In the book you will find a description and examples of solutions for all puzzles.The book is for those who like logic and math problems. Decide, developing and improving.

Hidoku (from Hebrew: "my puzzle") is a logical puzzle.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. There are more numbers on the board to help to direct the player how to start the solution and to ensure that Hidoku has only a single solution.Hidoku puzzles are similar to Numbrix. The most important difference is that diagonal moves are allowed.

Sudoku X also called Diagonal Sudoku.The puzzle is a 6x6 grid made up of 3x2 subgrids (called "regions").Some cells already contain numbers, known as "givens".The goal is to fill in the empty cells, one number in each, so that each column, row, region and diagonal contains the numbers 1 through 6 exactly once.Each number in the solution therefore occurs only once in each of three "directions", hence the "single numbers" implied by the puzzle's name.

Straights is a logic puzzle.It is a grid, partially divided by black cells into compartments.Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid).No single number can repeat in any row or column.Clues in black cells remove that number as an option in that row and column, and are not part of any straight.

Straights is a logic puzzle.It is a grid, partially divided by black cells into compartments.Each compartment, vertically or horizontally, must contain a straight - a set of consecutive numbers, but in any order (for example: 2-1-3-4).The aim is to fill all white cells with the numbers from 1 to N (where N is the size of the grid).No single number can repeat in any row or column.Clues in black cells remove that number as an option in that row and column, and are not part of any straight.

Suguru (also known as "Number Blocks") is a logic puzzle that has simple rules, but which provides sufficient challenges to satisfy the most enthusiastic solvers!The task consists of a rectangular or square grid divided into regions.Each region must be filled with each of the digits from 1 to the number of cells in the region.Cells with the same digits must not be orthogonally or diagonally adjacent.Even though the rules are simple, you will need all your skills to solve it.

Sudoku X also called Diagonal Sudoku.The puzzle is a 8x8 grid made up of 4x2 subgrids (called "regions").Some cells already contain numbers, known as "givens".The goal is to fill in the empty cells, one number in each, so that each column, row, region and diagonal contains the numbers 1 through 8 exactly once.Each number in the solution therefore occurs only once in each of three "directions", hence the "single numbers" implied by the puzzle's name.

Binary puzzle (also known as "Binairo", "Takuzu", "Tohu wa Vohu") is a logic puzzle that you can solve by using only zeros and ones. The rectangular or square grid should fill the numbers in accordance with the following rules: - Each row and each column contain the same number of digits "1" as digits "0" (or one more for odd sized grids). - The same number can only be in no more than two cells in a row. - Each line must be unique, and each column must be unique. In the book you will find a description and examples of solutions for all puzzles.The book is for those who like logic and math problems. Decide, developing and improving.

Hidoku (from Hebrew: "my puzzle") is a logical puzzle.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. There are more numbers on the board to help to direct the player how to start the solution and to ensure that Hidoku has only a single solution.Hidoku puzzles are similar to Numbrix. The most important difference is that diagonal moves are allowed.

Hidoku (from Hebrew: "my puzzle") is a logical puzzle.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. There are more numbers on the board to help to direct the player how to start the solution and to ensure that Hidoku has only a single solution.Hidoku puzzles are similar to Numbrix. The most important difference is that diagonal moves are allowed.