Fill the grid with the digits 1 to 9. The digits represent the height of the skyscraper in each cell. Each row, column and 3x3-box has exactly one of each digit. There are no neighbouring houses with consecutive skyscraper heights. The clues along the edges tell you how many Skyscrapers you can see from that vantage point.
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 3. Each row, column, and 3x3 box contains each digit three times. The red arrows indicate that the digit in that cell can't appear in the direction of the arrow.
This is a combination of some sudoku variants.
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The grid must fulfill the following rules:
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The colored extra-regions must contain each the digits 1 through 9.
In each 3x3 box their is a differet rule to follow:
This combination variant was introduced by Cihan Altay at the 1st Sudoku World Championship.
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The colored extra-regions must contain each the digits 1 through 9.
In each 3x3 box their is a differet rule to follow:
Fill the grid with the digits 1 to 9. The digits represent the height of the skyscraper in each cell. Each row, column and 3x3-box will have exactly one of each digit. The clues along the edges tell you how many skyscrapers you can see from that vantage point.
In each 3x3 box their is a different rule to follow:
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. Some rows and columns have fractions. The ratio of the connected pairs is 1/2, i. e. there are the following combinations of numbers in the two connected cells: 1 - 2, 2 - 4, 3 - 6 and 4 - 8 or vice versa.
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. Some rows and columns have fractions. They represent the ratio of the two ends. For example 3/4 can stand for the following combinations of numbers in the two end cells: 3 - 4, 6 - 8, 4 - 3 and 8 - 6.
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The numbers between two cells give the ratio of the digits. For example 3/4 can stand for the following combinations of numbers in the adjazent cells: 3 - 4, 6 - 8, 4 - 3 and 8 - 6.
Fill in the grid so that every row, every column and every 3x3 box contain the digits 1 through 9. Numbers outside the grid gives the position of the maximum of the first three digits.