Marching Goblins

[Thorsby]

I tried my two puzzles with zero solves. I found no mistakes. If anyone wants to try they are:
Turtle Sudoku 4s and 5s: https://logic-masters.de/Raetselportal/R...?id=00044K
Turtle Sandwich Sudoku: Always 9: https://logic-masters.de/Raetselportal/R...?id=00045P

I'll ask for testers for future puzzles.