...several hours of Settlers + Seafarers + Cities & Knights later...
The GNU: *blocks me from completing a shipping route towards an island*
I was up in Horsham with the family at the weekend (the parents had a rack of lamb in the freezer bought for Christmas that needed eating, and
It was a very close-run thing and I was honestly expecting The GNU to win it - I'd had to block him with an earlier settlement placement to prevent him getting to one foreign island. And normally my strategy of using a port for resources doesn't pay off, but this map helped by letting me claim a lot of high-probability wheat supply. So, unexpected victory with two more points than needed!