Logic Masters Deutschland e.V.

Normal 6x6 sudoku rules apply.
Infection Sites: Each digit matching its box number is an "infection site". Each row and column contains an infection site. They are infected.
Infections: Infected cells infect every orthogonally adjacent cell with a smaller digit. Infections keep spreading until no infected cell has a smaller uninfected orthogonal neighbor. (Every infected cell can be traced back to one or more infection sites.)
Internal X-Sums: A digit in a diamond is uninfected and counts the number of uninfected digits seen in the row and column combined, including itself. Infected cells block vision. The 2 digit number next to the diamond gives the sum of those seen digits.

Rules