NUR EINZELNE ZAHLEN ERLAUBT!

by Greg Lohman

Solution: OKTOBERFEST

Each grid translates to a letter. Each puzzle has several errors; correcting these and summing the numbers you write in gives you a number between 1 and 26 (doing this for Sample puzzle K gives you 11). Within each puzzle, errors are limited to one 3x3 grid; within each set, each 3x3 grid is used only once. The grid positions are referred to as follows:

1 2 3

4 5 6

7 8 9

The errors within each grid will be notated as Position #, then a list of the spaces with incorrect numbers (using the same numbering) and a list of the numbers that should go there.

So for sample puzzle K: Position 5, Spaces 4,7. Correct numbers are 4 and 7 = 11 = K

From top to bottom, set 1 gives:

Position 5, Space 5. Correct number is 1 =A

Position 1, Spaces 2,7. Correct numbers are 6 and 4 =
10 =J

Position 8, Spaces 2,3,4,5,9. Correct numbers are 4,
2, 1, 9, 5= 21 =U

Position 6, Spaces 2,5,6. Correct numbers are 7,4,9 =
20 =T

Position 4, Space 5. Correct number is 7 = G

Position 7, Spaces 5,7,8. Correct numbers are 8,9,2 =
19 =S

Position 2, Spaces 3,4,5,6. Correct numbers are
5,9,6,1 = 21 =U

Position 3, Spaces 1,4,8,9. Correct numbers are
8,2,7,4 = 21 =U

And set 2 gives:

Position 2, Space 8. Correct number is 1 =A

Position 7, Spaces 1,7. Correct numbers are 6,3 =9
=I

Position 4, Spaces 5,7,8. Correct numbers are 6,8,5 =
19 =S

Position 1, Spaces 2,5. Correct numbers are 7,6 = 13
=M

Position 6, Spaces 1,4,6. Correct numbers are 6,4,8 =
18 =R

Position 3, Spaces 3,4,7,9. Correct numbers are
5,3,8,4 = 20 =T

Position 5, Spaces 2,6,9. Correct numbers are 5,9,7 =
21 =U

These are ordered based on the position within the grids of the errors. Within each puzzle, errors are limited to one 3x3 grid; within each set, each 3x3 grid is used only once. Order starting with the upper left and reading across then down:

1 2 3

4 5 6

7 8 9

Ordering gives JUUGATSU MATSURI. This is where the title/flavortext in German comes in. The title is a German translation of the full name of Sudoku, so translate the answer to German. In English, it means "October Festival" so the answer is OKTOBERFEST