Fill in the grid so that every row, every column, and every 3x3 box contains besides the men digits 1 through 8. The men must see all 8 digits once if he looks orthogonally. His sight is blocked by walls.

Fill in the grid so that every row, every column, and every marked region, and cells with the same color contain the digits 1 through 9.

Fill in the grid so that every row, every column, the 3x3 boxes, both diagonals and the colored cells contain the digits 1 through 9.

Fill in the grid so that every row, every column, the 3x3 boxes and the colored cells contain the digits 1 through 9.
There is only one solution. You can find it by logic.

Füllen Sie das Diagramm mit Zahlen von 1 bis 9, wobei in jeder Zeile, jeder Spalte und in jedem der neun 3x3-Felder jede Zahl genau einmal vorkommt. Die Zahlen auf den grauen Linien müssen in aufsteigender oder absteigender Reihenfolge geordnet sein.

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.

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.

Fill in the grid so that every row, every column, and every 5x2 box contains the digits 4 and 5. Each row, column, and 3x3 box contains four 4's and five 5's.

Fill in the grid so that every row, every column, and every 5x2 box contains the digits 4 and 5. Each row, column, and 3x3 box contains four 4's and five 5's.

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 0 through 7. Each row, column, and 3x3 box contains two 0's, and the other digits only once.