In December 2020 there was a logic puzzle advent calender on mathebau.rocks. These puzzles will be uploaded to the puzzle portal in the next weeks.
Rules: Place in some white cells lamps, such that every white cell is lightened. Lamps shine horizontal and vertical until the border or the next black cell. Lamps cannot lighten each other.
Each number in a black cell indicates the number of lamps in the orthogonally adjacent cells. If there is no number, you can place arbitrarily many. You don't have to place all lamps next to black cells.
Solution code: For every row (top to bottom) the number of lamps in this row
on 28. January 2023, 23:23 by TJReds
penpa: https://tinyurl.com/2n94yjr3
on 25. July 2021, 13:01 by CJK
Labels den neuen Regeln angepasst
on 21. February 2021, 20:00 by SudokuExplorer
Thanks! I learnt quite a bit from it :-)
on 6. January 2021, 19:20 by ildiko
Danke für die Veröffentlichung jetzt im Portal. Im Dezember hatte ich es zeitlich einfach nicht geschafft und daher wieder aus den Augen verloren.