Very nice strategic level TM, every block came into life when I was solving this, this is a good high-fiver right here. We miss your levels and truly miss OMG.
It is kind of interesting how in such little space there are actually two different routes servicing each set of pairs. I really liked it from the beginning and I will try - in due course - to group them. Hope I can make it. Thnx for the comment OMG. Always a pleasure to have your views.
Play Level "Exchange Pairs"