Fill in the grids so that every yellow block has 8 white number cells arround the digits 1 through 8. Numbers must be placed according to greater (>) and less (<) signs.

Fill in the grid so that both rows contain the digits 1 through 9. In the circles there are no neighbouring cells with equal or consecutive digits.

Fill in the grid so that every line and the six 3x3 boxes contain two 2's, three 3's and four 4's.

Fill in the grid so that every radial line and every spiral line contains the digits 1 through 5.

Fill in the grid so that every line (in both with arrows marked directions) contains all the numbers from 1 to the length of that particular line.

Starting with the 1st Advent you can see in the Erzgebirge besides other things frequently so-called windows pictures. These are made with fretsaws, at wood turning lathes or with wood carving knivess. This puzzle shows a traditional fretsaw theme which is also used for Schwibbögen and Lichterbögen. You can see two Bergmaa (miners), there tools and a little Erzgebirgian church.

Fill in the grid so that it contains the digits 1 through 6 four times each. There are no neighbouring cells with the same or with consecutive digits.

Christmas Eve eat many Erzgebirgians the traditional Neinerlaa (English: of 9 kinds, speak: 'nein' like the number word 'nine', 'er' like the end of the words 'number', 'butter' and 'laa' with a long 'a'). A Neinerlaa is consisting of 9 courts, which all must be served simultaneously, and there are a lot rules around this. When we think to make a puzzle about a Neinerlaa theme we could think naturally about Sudoku, the puzzle with numbers of 9 kinds. Here I have a similar Neinerlaa prepared.

Fill in the grid with the letters of the word 'Neinerlaa' in each row, column and each 3x3 box. That means in each column, row and every 3x3 box exist the letters N, E and A exactly two times and the letters I, R and L exactly once.

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:

• Sudoku X: The both main diagonals contain each the digits 1 through 9.
• Sum Search Sudoku: The equal signs mark the relations between the sums of the digits of the cages. In cages there can't be the same digit repeated.
• Arrow Sudoku: The digit in a circle is the sum of the digits which are marked with its arrow.
• Ratio Sudoku: The fractions between two cells give the ratio of the digits. For example 2/3 can stand for the following combinations of numbers in the adjazent cells: 2 - 3, 4 - 6, 6 - 9, 3 - 2, 6 - 4 and 9 - 6.
• Wheel Sudoku: The wheels in the grid contain each 4 values. These values will go in the cells the numbers are in. Doing this the wheels must be rotatated to the right position. (Not mirrored or changed the order of the digits.)

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. The clues along the edges tell you how many skyscrapers you can see from that vantage point. The wheels in the grid contain each 4 values. These values will go in the cells the numbers are in. Doing this the wheels must be rotatated to the right position. (Not mirrored or changed the order of the digits.)