Place some light bulbs in the grid so that every cell is lighted by at least one light bulb. The bulbs shine vertically and horizontally, and the light stop when encountering a black square. Bulbs cannot see each other. Clues in black indicate how many bulbs are to be placed around the cell (vertically and horizontally).
In this puzzle, the letters A, C ,K, I and R hide a value from 0-4. Different letters are different numbers.
You can use Penpa-edit for solving it on your browser. (Idk why the arrows don't show un in penpa)
Solution code: Numbers of light bulbs in row 3, row 9, column 6, 11 and 14. Relevant rows/clumns are marked for convenience. Example : 62103
on 20. June 2020, 16:54 by Realshaggy
German page is fine. Thanks for your effort to counter the Sudoku flood.
on 20. June 2020, 15:20 by Carrick22
For German users, please tell me if the german page appears and if there are any correction to make in regards of the translation.