If you are familiar with the movie Indiana Jones and the Last Crusade, you might recognize the inspiration for these constraints. Knowing the movie is however not necessary for solving the puzzle.
Normal Sudoku rules apply.
Digits on the green line do not repeat. Each such digit indicates how tall our hero stands in that spot. For example, a 1 on the green line means that he reaches only that cell itself. A 3 on the green line means he reaches that cell and the two above it. The hero must never reach a cell on the gray "blade" line.
The two caged cells are prime numbers, and they are connected by a path of orthogonally adjacent prime numbers. There is only one possible path. That is, each number across the path has exactly two prime neighbors (the one you came from, and the one you're going to), except for the start and end cells which only have one each.
Two digits on the orange lines that are in the same row of the puzzle are consecutive. Two digits on the blue lines that are in the same row of the puzzle are consecutive. That is, the same rules govern both paths, but the paths are independent of each other.
Digits on the silver circles are prime. They don't repeat. Digits on the gold squares are non-prime. They also don't repeat.
Play on Sudokupad: https://sudokupad.app/h5x4c47exs
Solution code: Row 4
on 17. January 2026, 15:12 by sparkymanu
I'm surprised this is still not rated, I quite enjoyed it !
on 15. January 2026, 07:49 by balpha
added German translation
on 14. January 2026, 22:44 by dzamie
Pretty cool!