I just want to be clear about how to claim a short tunnel route in Ticket to Ride Switzerland.
Say I am taking a tunnel that requires only one card (red, for instance). If I turn over a red card I need another red card (or a locomotive) to match it. But if I turn over 2 further red cards (i.e. 3 red cards in all) do I need further red cards (or locomotives) to match?
It would seem strange to have to use 4 red cards in total to claim a one route.