Olympic Rings

Normal sudoku rules apply.

Digits cannot repeat on either diagonal. Digits in a quadruple clue must appear at least once in the four surrounding cells.

Box borders divide the blue ring into segments with the same sum. Digits along the black ring must increase from the bulb to the tip. The bulb and the tip are adjacent on the ring and their position, as well as the direction of the thermo, must be deduced. Digits along the red ring all have the same parity (odd or even). The yellow ring contains a non-repeating set of consecutive digits in any order. Adjacent digits along the green ring must differ by at least 5.