Today's picture shows a pyramid with a manger scene. Joseph has a Christmas Matins lantern in his hands. Lanterns of this type are used in the Erzgebirge on the way to Christma Matins on the morning of the 25th December.
The Erzgebirgian people celebrate Christmas Eve with a feast, the Neinerlaa (literally: nine different things). There are many rules surrounding the Neinerlaa. It would take too long to mention them all here. But the nine ingredients that gave the Neinerlaa the name have special meanings. The Griene Kließ (raw potato dumplings) will bring money, the lentils or the millet little money, the beetroot red cheeks (i.e. health), the root celery fertility, bread roll milk white clothes (i.e. order in the house). Also important, there must be animals on earth (sausage from the pig), in the air (goose) and in the water (now herring, formerly also carp).
When I decided to make a Neinerlaa puzzle, it quickly became clear there should be a sudoku, because there are nine rows, nine columns, nine boxes and nine numbers. The pioneering role of the components are symbolized in our puzzle by nine kinds of arrows. And to top this, there is sometimes a purple cell border if the sum of the neighboring cells is 9.
Celery root is one of the nine components of the Neinerlaa, the traditional meal on Christmas Eve in the Erzgebirge. Usually it is served as a salad. Celery has as each of the nine components of the Neinerlaa a meaning, it should provide for the blessing of children. In our case, the celery has produced sextuplets. So six puzzle species are combined in our puzzle.
Fill out the grid with tetrominoes (4-units) in the colors red, blue and yellow. Tetrominoes of the same color can touch each other only on the corners.
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. The red arrows indicate that the digit in that cell can't appear in the direction of the arrow.