Originally Posted by Gardyloo

You can indeed add Moscow and stay within the rules - just swap PEK-NRT for PEK-HND, then take JAL's nonstop flight to DME. Note that Finnair uses SVO for its Moscow flights, so if you wanted to avoid losing a segment because of the airport change in Moscow, you'd have to fly to either Madrid or London in order to "double back" to Helsinki, but you'd still have enough segments in Europe and overall - to wit:

CCS-MIA-SFO-LAX-MEL-AKL-SYD-SIN-BKK-HKG-PEK-NRT-DME-MAD-HEL-MAD-CCS