Fill in the grid so that every row, every column, and every 3x2 box contains the digits 1 through 6. In all cells the number can not be the sum of the gaps of this cell with its orthogonal adjazent neighbors.

Example:

Puzzle:

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. In golden cells the number is the sum of the gaps of this cell with its orthogonal adjazent neighbors. In white cells the number can not be the sum of the gaps of this cell with its orthogonal adjazent neighbors.

Smaller Example:

Puzzle:

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. In golden cells the number is the sum of the gaps of this cell with its orthogonal adjazent neighbors. In white cells the number can not be the sum of the gaps of this cell with its orthogonal adjazent neighbors.

Smaller Example:

Puzzle:

Fill in the grid so that every row, every column, and every 3x3 box contains nine different digits of the digits 0 through 9. Numbers outside the grid represent the missing digit in the corresponding row or column.

Fill the grid with the digits 1 to 6. Each row, column and 3x3-box has exactly one of each digit and 3 empty cells. The clues along the edges tell you which digit 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 9. The even clues along the edges tell you which digit is the first even digit from that vantage point. The odd clues along the edges tell you which digit is the first odd digit from that vantage point.

Smaller Example:

Puzzle:

Fill in the grid so that every row, every column, and every 3 x 3 box contains the digits 1 through 9. The colored cells mark the years of birth or death of some well-known composers. You can solve the sudoku, if you know at least the century of birth or death.

Connect in the left grid all dots in pairs in such a way that all cells are filled. Each straight line must be at least 2 cells long. After that fill in the right grid so that every row, every column and every 3x3 box contain the digits 1 through 9. If two cells are in the left grid in the same path (snake) then the corresponding cells in the right grid must be different.

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 0 through 9. Some cells contain two digits.

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 0 through 9. Some cells contain two digits.