Logic Masters Deutschland e.V.

This is the third puzzle of my natural phenomenon sudoku series. I hope you enjoy it.

Rules:

Normal sudoku rules apply.

A circled digit indicates exactly how many circles contain that digit.

Digits may not repeat along the indicated diagonal. In addition, the marked diagonal also acts as a parity mirror. Digits above/right to the mirror reflect their parity to those below/left (e.g. if R5C8 is even, then R8C5 is also even).

Digits on a gray line must sum to ten.

Solve online: CTC, f-puzzle