You can try and see how STV will work for the Lib Dem leadership election here, with a working online poll that lets you rank the candidates in order.

At 2.57am, my vote means that Chris Huhne wins after Simon’s second preferences propel him above Ming.

Don’t forget, dear Lib Dem Reader, if anyone asks you who you’re voting for, this is one of the few occasions in a public election when you can legitimately answer:

“All of them.”