Renban: Cells connected by purple (or grey) renban lines form a set of consecutive, nonrepeating digits in any order.
Skyscrapers: Consider each digit in the grid as a building of that height. Clues outside the grid give the number of buildings that can be seen from that direction, with larger buildings hiding smaller ones.
Solve online:
F-puzzles
Penpa+ (Note: in Penpa, renban lines are grey, not purple)
CtC app
Solution code: Column 4, followed by column 7 (18 digits, no spaces).
on 27. April 2022, 22:32 by marcmees
nice. thanks.
on 27. April 2022, 17:51 by tallcat
Really really enjoyed this one! Super fun from start to finish.
on 27. April 2022, 17:50 by Snow the Jam Man
Very nice puzzle, i especially loved the opening.
on 27. April 2022, 17:07 by grkles
Fixing typo in solution code description.