Fill in the grid so that every row, every column, 3x3 box and both diagonals contain the digits 1 through 9. The same digits can not touch each other diagonally.
Divide the grid into rectangular and square pieces of at least 2 cells. Additional fill digits in the grid so that every row, every column, and every 3 x 3 box contains the digits 1 through 9. The arrows show which cell is part of the rectangle with the greater number of cells. In every piece is exactly one number and this is the sum of the digits in this piece. In pieces no number is repeated.
Example with the digits 1 through 6:
Puzzle:
Divide the grid into rectangular and square pieces. The greater less signs show which area cell is part of the rectangle with the greater number of cells.
Example:
Puzzle:
Fill the grid with the digits 1 to 9. Each row, column and 3x3-box has exactly one of each digit. If the difference between two cells is 1 then there is a white dot. If digit in a cell is the half from a neighboring cell then there is a black dot. The dot between two cells with 1 and 2 can have any of these two colors.
Fill the grid with the digits 1 to 9. Each row, column and 3x3-box has exactly one of each digit. If the difference between two cells is 1 then there is a white dot. If digit in a cell is the half from a neighboring cell then there is a black dot. The dot between two cells with 1 and 2 can have any of these two colors.
Locate the position of 20 mines in the grid. The numbers in the grid indicate the number of cells occupied by mines in adjazent cells, including diagonally. Mines are not on the numbered squares.
Paint out some cells so that there are no duplicate numbers in any row or column. Painted-out (black) cells cannot be connected orthogonally. All un-painted squares must be connected, horizontally or vertically, to create a single shape.
Paint out some cells so that there are no duplicate numbers in any row or column. Painted-out (black) cells cannot be connected orthogonally. All un-painted squares must be connected, horizontally or vertically, to create a single shape.
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The colored pyramids must contain each the digits 1 through 9.
Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The colored squares must contain each the digits 1 through 9.