Locate the position of the fleet in the grid. The shapes of the ships are shown to the right of the grid. The numbers in the grid indicate the number of cells occupied by ships in adjazent cells, including diagonally. Ships may touch the edge of the board, but can't touch each other, even not diagonally. Ships do not overlap the numbered squares.

Example:

Puzzle:

In every row and column is exactly one circle, one square and one triangle. Locate the position of these symbols. The numbers in the grid indicate the number of cells occupied by symbols in adjazent cells, including diagonally. Symbols are not on the numbered squares.

Smaller example with two symbols:

Puzzle:

Locate the position of 20 chess knights in the grid. The numbers in the grid indicate the number of knights attacking this cells. Knights are not on the numbered squares.

* After the shift on 23 December the miners of the Erzgebirge celebrated in their mines the Mettenschicht. Still today many christmas hootenannys take place underground in former mines. For me they are among the most beautiful. Our miner is facing the following puzzle: *

The letters A, B, C and D represent four minerals that are hidden in a gallery. Write the letters A, B, C and D) in some fields of the grid. Each letter must occur in each row and each column exactly once. The remaining fields are blank. Letters outside the diagram indicate which letter you see if you look into the grid from that point. Numbers in the grid indicate how many letters are on the 8 neighboring cells. Cells marked with a number are empty.

*A popular motif of Nutcrackers are Olbernhauian riders. Our rider has ridden on the puzzle grid, but which way he has taken? *

Draw the bridle path, with the following rules:

- The start is in the top row.
- Start and finish cell are different.
- The path is exactly 49 fields long.
- The path must be connected horizontally or vertically, it must not touch or cross itself.
- The numbers in the grid indicate how many cells of the path are horizontally, vertically or diagonally adjacent to the number.
- The bridle path does not go through cells with a number.

Locate the position of the 3 tanks of 7 cells in the grid. The tanks do not touch each other, even not diagonally. Numbers indicate the total number of tank cells in their row and column. Tanks can not cover cells with numbers. To cells are marked to be empty.

Locate the position of the 10-ship fleet in the grid. The ships do not touch each other, even not diagonally. The numbered squares are lighthouses, and indicate the total number of ship parts that are in the same row or column as the lighthouse. Ships can not touch the lighthouses, not even diagonally.

Locate the position of mines in the grid. The numbers in the grid indicate the number of cells occupied by mines in adjazent cells, including diagonally or on the numbered square. In the marked regions either all or none cell has a mine.

Locate mines in the circular grid. The numbers in the grid indicate the number of mines in adjazent cells, including diagonally. There are no mines in the numbered squares.

Example:

Puzzle:

Locate the position of the given fleet in the grid. The shapes of the ships are shown to the right of the grid. There is one 4x1 battleship, two 3x1 cruisers, three 2x1 destroyers and 4 1x1 submarines. The numbers in the grid indicate the number of cells occupied by ships in adjazent cells (only horizontally or vertically adjazent cells). Ships may touch the edge of the board, but can touch each other only diagonally. Ships do not overlap the numbered squares.