
I couldn't drive forward as the ground had gone soft overnight and the wheels just kept digging themselves in. I tried with the mats, with stones, just getting deeper.
In the end, I got the snow chains out:

Not much fun. My fingers got nearly as cold as if it had been snow, and a lot dirtier. In fact, it was harder work on mud than it is on snow!

We got out in the end... Not the most glorious first use of the van's snow chains!