Normal Sudoku rules apply. Digits cannot repeat along blue lines, or in a cage. Digits must strictly increase along a gray line from the bulb end.
Try it on CTC

Solution code: The middle row of the puzzle
Solved by PsychedelicCreature, Mr. Happy, deltameth, SeveNateNine, Crusader175, Chefofdeath, SudokuHero, by81996672, lianarox, Exigus, Dentones, Marius, SKORP17, cornish-john, Corey115, hsimah, amihar
Comments
on 7. April 2026, 14:54 by Marius
Beautiful setting
on 7. April 2026, 12:49 by Exigus
Great colouring exercise, thanks!