18.03.2025, 23:26
In 2023 I published 5 sudoku puzzles with the "mountain" rule. Most were hybrids with other rules, but these 2 just used the mountain rule:
https://logic-masters.de/Raetselportal/R...?id=000D0H
https://logic-masters.de/Raetselportal/R...?id=000D6O
https://logic-masters.de/Raetselportal/R...?id=000D0H
https://logic-masters.de/Raetselportal/R...?id=000D6O